Tag: M.W=650-700

Chlorinated organic compounds are found in nearly every class of biomolecules. 12112-67-3, formula is C16H24Cl2Ir2, Name is Chloro(1,5-cyclooctadiene)iridium(I) dimer. Alkyl chlorides, as versatile building blocks in organic chemistry, are used in the preparation of alcohols, thioethers, alkenes, alkynes, esters, and Grignard reagents. Category: chlorides-buliding-blocks.

Casnati, Alessandra;Lichosyt, Dawid;Lainer, Bruno;Veth, Lukas;Dydio, Pawel research published 《 Multicatalytic Approach to One-Pot Stereoselective Synthesis of Secondary Benzylic Alcohols》, the research content is summarized as follows. Here, one-pot, multicatalytic protocols that convert alkenes, unsaturated aliphatic alcs., and aryl boronic acids into secondary benzylic alcs. with high stereoselectivities (typically >95:5 er) under sequential catalysis that integrates alkene cross-metathesis, isomerization, and nucleophilic addn was reported. Prochiral allylic alcs. was converted to any stereoisomer of the product with high stereoselectivity (>98:2 er, >20:1 dr).

12112-67-3, Bis(1,5-cyclooctadiene)diiridium(I) is a useful research compound. Its molecular formula is C16H24Cl2Ir2-2 and its molecular weight is 671.7 g/mol. The purity is usually 95%.
Bis(1,5-cyclooctadiene)diiridium(I) Dichloride is a catalyst used in the iridium-catalyzed asymmetry hydrogenation of unfunctionalized exocyclic double carbon bonds. Also, it is used to test new NeoPHOX ligands derived from serine or threonine.
Bis(1,5-cyclooctadiene)diiridium(I) dichloride is an acid that can be prepared using a preparative method. It is an organometallic compound that can be used in the cross-coupling of activated terminal alkynes with aryl halides. Bis(1,5-cyclooctadiene)diiridium(I) dichloride has been synthesized by reacting furfural with chloride and acetonitrile. The ligand used was 2,2′-bipyridine. The reaction time to produce bis(1,5-cyclooctadiene)diiridium(I) dichloride is approximately three hours.
, Category: chlorides-buliding-blocks

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Chloride substituents modify the physical properties of organic compounds in several ways. 12112-67-3, formula is C16H24Cl2Ir2, Name is Chloro(1,5-cyclooctadiene)iridium(I) dimer. They are typically denser than water due to the presence of chlorine, which has a high atomic weight. Name: Chloro(1,5-cyclooctadiene)iridium(I) dimer.

Chakrabarty, Aditya;Mukherjee, Santanu research published 《 Iridium-Catalyzed Enantioselective and Chemodivergent Allenylic Alkylation of Vinyl Azides for the Synthesis of α-Allenylic Amides and Ketones》, the research content is summarized as follows. The first enantioselective synthesis of α-allenylic amides and ketones through allenylic alkylation of vinyl azides was reported. In these chemodivergent reactions, cooperatively catalyzed by a Ir^I/(phosphoramidite, olefin) complex and Sc(OTf)₃, vinyl azides acted as the surrogate for both amide enolates and ketone enolates. The desiccant (mol. sieves) played a crucial role in controlling the chemodivergency of this enantioconvergent and regioselective reaction, under otherwise identical reaction conditions, the presence of the desiccant led to α-allenylic amides, while its absence resulted in α-allenylic ketones. Utilizing racemic allenylic alcs. as the alkylating agent, the overall process represents a dynamic kinetic asym. transformation (DyKAT), where both the products were formed with the same absolute configuration.

12112-67-3, Bis(1,5-cyclooctadiene)diiridium(I) is a useful research compound. Its molecular formula is C16H24Cl2Ir2-2 and its molecular weight is 671.7 g/mol. The purity is usually 95%.
Bis(1,5-cyclooctadiene)diiridium(I) Dichloride is a catalyst used in the iridium-catalyzed asymmetry hydrogenation of unfunctionalized exocyclic double carbon bonds. Also, it is used to test new NeoPHOX ligands derived from serine or threonine.
Bis(1,5-cyclooctadiene)diiridium(I) dichloride is an acid that can be prepared using a preparative method. It is an organometallic compound that can be used in the cross-coupling of activated terminal alkynes with aryl halides. Bis(1,5-cyclooctadiene)diiridium(I) dichloride has been synthesized by reacting furfural with chloride and acetonitrile. The ligand used was 2,2′-bipyridine. The reaction time to produce bis(1,5-cyclooctadiene)diiridium(I) dichloride is approximately three hours.
, Name: Chloro(1,5-cyclooctadiene)iridium(I) dimer

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Organic chloride is an organic compound containing at least one covalently bonded atom of chlorine. 12112-67-3, formula is C16H24Cl2Ir2, Name is Chloro(1,5-cyclooctadiene)iridium(I) dimer. Their wide structural variety and divergent chemical properties lead to a broad range of names and applications. Reference of 12112-67-3.

Chen, Cunzhi;Fang, Shuyan;Dong, Ziyang;Xu, Jiaxi;Yang, Zhanhui research published 《 Catalytic Diastereospecific and Enantioselective (3 + 2) Transannulations of 1,2,3-Thiadiazoles with Strained Norbornene Derivatives》, the research content is summarized as follows. With the adoption of a ring-strain-release strategy, iridium-catalyzed transannulations with norbornene derivatives are achieved in a diastereospecific and enantioselective manner to yield tricyclic products such as I [R = H, I, OMe, etc.]. The first asym. transannulations of 1,2,3-thiadiazoles are reported to yield corresponding products e.g., II.

Reference of 12112-67-3, Bis(1,5-cyclooctadiene)diiridium(I) is a useful research compound. Its molecular formula is C16H24Cl2Ir2-2 and its molecular weight is 671.7 g/mol. The purity is usually 95%.
Bis(1,5-cyclooctadiene)diiridium(I) Dichloride is a catalyst used in the iridium-catalyzed asymmetry hydrogenation of unfunctionalized exocyclic double carbon bonds. Also, it is used to test new NeoPHOX ligands derived from serine or threonine.
Bis(1,5-cyclooctadiene)diiridium(I) dichloride is an acid that can be prepared using a preparative method. It is an organometallic compound that can be used in the cross-coupling of activated terminal alkynes with aryl halides. Bis(1,5-cyclooctadiene)diiridium(I) dichloride has been synthesized by reacting furfural with chloride and acetonitrile. The ligand used was 2,2′-bipyridine. The reaction time to produce bis(1,5-cyclooctadiene)diiridium(I) dichloride is approximately three hours.
, 12112-67-3.

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Organic chlorides are organic molecules with a C-Cl bond, for example chloroform (CH3-Cl) or vinyl chloride(C2H3Cl). 12112-67-3, formula is C16H24Cl2Ir2, Name is Chloro(1,5-cyclooctadiene)iridium(I) dimer. Organic chlorides can be used in production of: PVC, Organic chlorides can cause corrosion in pipelines, valves and condensers, and cause catalyst poisoning. Formula: C16H24Cl2Ir2.

Chen, Hongyu;Yamaguchi, Shigeru;Morita, Yuya;Nakao, Hiroyasu;Zhai, Xiangning;Shimizu, Yohei;Mitsunuma, Harunobu;Kanai, Motomu research published 《 Data-driven catalyst optimization for stereodivergent asymmetric synthesis by iridium/boron hybrid catalysis》, the research content is summarized as follows. Here, the straightforward identification of asym. two-component iridium/boron hybrid catalyst systems for α-C-allylation of carboxylic acids was reported. Structural optimization of the chiral ligands for iridium catalysts was driven by mol.-field-based regression anal. with a dataset containing overall 32 mol. structures. The catalyst systems enabled selective access to all the possible isomers of chiral carboxylic acids bearing contiguous stereocenters. This chemoselective and stereodivergent, asym. catalysis was applicable to late-stage structural modifications of drugs and their derivatives

Formula: C16H24Cl2Ir2, Bis(1,5-cyclooctadiene)diiridium(I) is a useful research compound. Its molecular formula is C16H24Cl2Ir2-2 and its molecular weight is 671.7 g/mol. The purity is usually 95%.
Bis(1,5-cyclooctadiene)diiridium(I) Dichloride is a catalyst used in the iridium-catalyzed asymmetry hydrogenation of unfunctionalized exocyclic double carbon bonds. Also, it is used to test new NeoPHOX ligands derived from serine or threonine.
Bis(1,5-cyclooctadiene)diiridium(I) dichloride is an acid that can be prepared using a preparative method. It is an organometallic compound that can be used in the cross-coupling of activated terminal alkynes with aryl halides. Bis(1,5-cyclooctadiene)diiridium(I) dichloride has been synthesized by reacting furfural with chloride and acetonitrile. The ligand used was 2,2′-bipyridine. The reaction time to produce bis(1,5-cyclooctadiene)diiridium(I) dichloride is approximately three hours.
, 12112-67-3.

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Organic chloride is an organic compound containing at least one covalently bonded atom of chlorine. 12112-67-3, formula is C16H24Cl2Ir2, Name is Chloro(1,5-cyclooctadiene)iridium(I) dimer. Their wide structural variety and divergent chemical properties lead to a broad range of names and applications. Quality Control of 12112-67-3.

Biswas, Soumik;Blessent, Michael J.;Gordon, Benjamin M.;Zhou, Tian;Malakar, Santanu;Wang, David Y.;Krogh-Jespersen, Karsten;Goldman, Alan S. research published 《 Origin of Regioselectivity in the Dehydrogenation of Alkanes by Pincer-Iridium Complexes: A Combined Experimental and Computational Study》, the research content is summarized as follows. PCP-pincer (κ³-2,6-C₆H₃(CH₂PR₂)₂) iridium complexes have been reported to catalyze the transfer dehydrogenation of n-alkanes with high regioselectivity for the terminal position. We find that the very closely related PCOP (κ³-2,6-C₆H₃(CH₂PR₂)(OPR₂)) and POCOP (κ³-2,6-C₆H₃(OPR₂)₂) complexes, in contrast, afford no such regioselectivity. The difference is a true kinetic phenomenon, i.e., it is not a result of isomerization subsequent to the formation of free α-olefin. In addition to direct observation of the distribution of n-alkane dehydrogenation products over time, the pronounced difference in regioselectivity is confirmed through intermol. competition studies of the reverse reaction (olefin transfer hydrogenation) and of the dehydrogenation of cycloalkane vs n-alkane. Electronic structure (DFT) calculations indicate that the rate- and selectivity-determining step for dehydrogenation by the (PCP)Ir complexes is β-H transfer. C-H activation at the primary position is much more favorable than at secondary positions, but this is not responsible for the terminal regioselectivity; indeed, the formation of α-olefin via C2-H addition and transfer of the C1-H bond is calculated to be slightly more favorable than dehydrogenation proceeding via C1-H addition For both PCP and POCOP complexes, the formation of the α-olefin iridium dihydride complex is more facile than the formation of internal-olefin complexes. The next step in the catalytic pathway, loss of olefin, is calculated to have an activation energy that is significantly greater than the metal-ligand (thermodn.) bond energy. In the case of POCOP complexes, the loss of olefin, rather than β-H transfer, is the rate- and selectivity-determining step. The hydrocarbon moiety in the transition state for olefin loss has the character of a fully formed olefin; this favors the formation of internal olefin. The different regioselectivity of (POCOP)Ir vs (PCP)Ir catalysts is thus attributable to the different rate-determining steps of their resp. catalytic cycles; this in turn can be explained in terms of different electronic effects of O vs. CH₂ linker exerted through the pincer aromatic ring.

Quality Control of 12112-67-3, Bis(1,5-cyclooctadiene)diiridium(I) is a useful research compound. Its molecular formula is C16H24Cl2Ir2-2 and its molecular weight is 671.7 g/mol. The purity is usually 95%.
Bis(1,5-cyclooctadiene)diiridium(I) Dichloride is a catalyst used in the iridium-catalyzed asymmetry hydrogenation of unfunctionalized exocyclic double carbon bonds. Also, it is used to test new NeoPHOX ligands derived from serine or threonine.
Bis(1,5-cyclooctadiene)diiridium(I) dichloride is an acid that can be prepared using a preparative method. It is an organometallic compound that can be used in the cross-coupling of activated terminal alkynes with aryl halides. Bis(1,5-cyclooctadiene)diiridium(I) dichloride has been synthesized by reacting furfural with chloride and acetonitrile. The ligand used was 2,2′-bipyridine. The reaction time to produce bis(1,5-cyclooctadiene)diiridium(I) dichloride is approximately three hours.
, 12112-67-3.

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

The class of organic compounds having covalently a bonded chlorine atom is called organic chlorides. 12112-67-3, formula is C16H24Cl2Ir2, Name is Chloro(1,5-cyclooctadiene)iridium(I) dimer. Their wide structural variety and divergent chemical properties lead to a broad range of named reactions and applications. Application In Synthesis of 12112-67-3.

Blanchard, John W.;Ripka, Barbara;Suslick, Benjamin A.;Gelevski, Dario;Wu, Teng;Muennemann, Kerstin;Barskiy, Danila A.;Budker, Dmitry research published 《 Towards large-scale steady-state enhanced nuclear magnetization with in situ detection》, the research content is summarized as follows. Signal amplification by reversible exchange (SABRE) boosts NMR signals of various nuclei enabling new applications spanning from magnetic resonance imaging to anal. chem. and fundamental physics. SABRE is especially well positioned for continuous generation of enhanced magnetization on a large scale; however, several challenges need to be addressed for accomplishing this goal. Specifically, SABRE requires (i) a specialized catalyst capable of reversible H2 activation and (ii) phys. transfer of the sample from the point of magnetization generation to the point of detection (e.g., a high-field or a benchtop NMR [NMR] spectrometer). Moreover, (iii) continuous parahydrogen bubbling accelerates solvent (e.g., methanol) evaporation, thereby limiting the exptl. window to tens of minutes per sample. In this work, we demonstrate a strategy to rapidly generate the best-to-date precatalyst (a compound that is chem. modified in the course of the reaction to yield the catalyst) for SABRE, [Ir(IMes)(COD)Cl] (IMes = 1,3-bis-[2,4,6-trimethylphenyl]-imidazol-2-ylidene; COD = cyclooctadiene) via a highly accessible synthesis. Second, we measure hyperpolarized samples using a home-built zero-field NMR spectrometer and study the field dependence of hyperpolarization directly in the detection apparatus, eliminating the need to phys. move the sample during the experiment Finally, we prolong the measurement time and reduce evaporation by presaturating parahydrogen with the solvent vapor before bubbling into the sample. These advancements extend opportunities for exploring SABRE hyperpolarization by researchers from various fields and pave the way to producing large quantities of hyperpolarized material for long-lasting detection of SABRE-derived nuclear magnetization.

Application In Synthesis of 12112-67-3, Bis(1,5-cyclooctadiene)diiridium(I) is a useful research compound. Its molecular formula is C16H24Cl2Ir2-2 and its molecular weight is 671.7 g/mol. The purity is usually 95%.
Bis(1,5-cyclooctadiene)diiridium(I) Dichloride is a catalyst used in the iridium-catalyzed asymmetry hydrogenation of unfunctionalized exocyclic double carbon bonds. Also, it is used to test new NeoPHOX ligands derived from serine or threonine.
Bis(1,5-cyclooctadiene)diiridium(I) dichloride is an acid that can be prepared using a preparative method. It is an organometallic compound that can be used in the cross-coupling of activated terminal alkynes with aryl halides. Bis(1,5-cyclooctadiene)diiridium(I) dichloride has been synthesized by reacting furfural with chloride and acetonitrile. The ligand used was 2,2′-bipyridine. The reaction time to produce bis(1,5-cyclooctadiene)diiridium(I) dichloride is approximately three hours.
, 12112-67-3.

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Organic chloride is an organic compound containing at least one covalently bonded atom of chlorine. 12112-67-3, formula is C16H24Cl2Ir2, Name is Chloro(1,5-cyclooctadiene)iridium(I) dimer. Their wide structural variety and divergent chemical properties lead to a broad range of names and applications. Reference of 12112-67-3.

Bohme, Matthias D.;Eder, Tobias;Rothel, Maike B.;Dutschke, Patrick D.;Wilm, Lukas F. B.;Hahn, F. Ekkehardt;Dielmann, Fabian research published 《 Synthesis of N-Heterocyclic Carbenes and Their Complexes by Chloronium Ion Abstraction from 2-Chloroazolium Salts Using Electron-Rich Phosphines》, the research content is summarized as follows. N-Heterocyclic carbenes (NHCs) are commonly prepared by deprotonation of azolium salts using strong anionic bases. This reaction is often unselective, yielding alkali metal NHC complexes or dimerized NHCs. Alternatively, free NHCs are obtained by the dechlorination of 2-chloroazolium salts using electron-rich phosphines. PPh₃, PCy₃, and PtBu₃ are unsuitable for Cl⁺ abstraction, while the sterically encumbered tris(1,3-tert-butylimidazolidin-2-ylidenamino)phosphine (1) selectively removes Cl⁺ from 2-chloroazolium salts. Since bulky 1 does not bind to metal complexes, it was used for the preparation of NHC complexes via in situ Cl⁺ abstraction from 2-chloroazolium salts. The dechlorination was employed for the site-selective monometalation with Ir^I, Ir^III, Rh^I, Rh^III, and Ru^II of a bis-NHC precursor composed of a 2-chlorobenzimidazolium and a 2-chlorobenzimidazole group, followed by the preparation of the heterobimetallic Ir^III/Pd^II complex [18](BF₄)₂ by a dechlorination/oxidative addition reaction sequence.

12112-67-3, Bis(1,5-cyclooctadiene)diiridium(I) is a useful research compound. Its molecular formula is C16H24Cl2Ir2-2 and its molecular weight is 671.7 g/mol. The purity is usually 95%.
Bis(1,5-cyclooctadiene)diiridium(I) Dichloride is a catalyst used in the iridium-catalyzed asymmetry hydrogenation of unfunctionalized exocyclic double carbon bonds. Also, it is used to test new NeoPHOX ligands derived from serine or threonine.
Bis(1,5-cyclooctadiene)diiridium(I) dichloride is an acid that can be prepared using a preparative method. It is an organometallic compound that can be used in the cross-coupling of activated terminal alkynes with aryl halides. Bis(1,5-cyclooctadiene)diiridium(I) dichloride has been synthesized by reacting furfural with chloride and acetonitrile. The ligand used was 2,2′-bipyridine. The reaction time to produce bis(1,5-cyclooctadiene)diiridium(I) dichloride is approximately three hours.
, Reference of 12112-67-3

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Organic chlorides are organic molecules with a C-Cl bond, for example chloroform (CH3-Cl) or vinyl chloride(C2H3Cl). 12112-67-3, formula is C16H24Cl2Ir2, Name is Chloro(1,5-cyclooctadiene)iridium(I) dimer. Organic chlorides can be used in production of: PVC, Organic chlorides can cause corrosion in pipelines, valves and condensers, and cause catalyst poisoning. Safety of Chloro(1,5-cyclooctadiene)iridium(I) dimer.

Benaissa, Idir;Gajda, Katarzyna;Vendier, Laure;Lugan, Noel;Kajetanowicz, Anna;Grela, Karol;Michelet, Veronique;Cesar, Vincent;Bastin, Stephanie research published 《 An Anionic, Chelating C(sp³)/NHC ligand from the Combination of an N-heterobicyclic Carbene and Barbituric Heterocycle》, the research content is summarized as follows. The coordination chem. of the anionic NHC 1^– based on an imidazo[1,5-a]pyridin-3-ylidene (IPy) platform substituted at the C5 position by an anionic barbituric heterocycle was studied with d⁶ (Ru(II), Mn(I)) and d⁸ (Pd(II), Rh(I), Ir(I), Au(III)) transition-metal centers. While the anionic barbituric heterocycle is planar in the zwitterionic NHC precursor 1·H, NMR spectroscopic analyses supplemented by x-ray diffraction studies evidenced the chelating behavior of ligand 1^– through the carbenic and the malonic C atoms in all of the complexes, resulting from a deformation of the lateral barbituric heterocycle. The complexes were obtained by reaction of the free carbene with the appropriate metal precursor, except for the Au(III) complex 10, which was obtained by oxidation of the antecedent Au(I) complex [AuCl(1)]^– with PhICl₂ as an external oxidant. During the process, the kinetic Au(I) intermediate 9 resulting from the oxidation of the malonic C of the barbituric moiety was isolated upon crystallization from the reaction mixture The ν_CO stretching frequencies recorded for complex [Rh(1)(CO)₂] (5) demonstrated the strong donating character of the malonate-C(sp³)/NHC ligand 1^–. The Ru complex [Ru(1)Cl(p-cymene)] (11) was implemented as a precatalyst in the dehydrogenative synthesis of carboxylic acid derivatives from primary alcs. and exhibited high activities at low catalyst loadings (25-250 ppm) and a large tolerance toward functional groups.

12112-67-3, Bis(1,5-cyclooctadiene)diiridium(I) is a useful research compound. Its molecular formula is C16H24Cl2Ir2-2 and its molecular weight is 671.7 g/mol. The purity is usually 95%.
Bis(1,5-cyclooctadiene)diiridium(I) Dichloride is a catalyst used in the iridium-catalyzed asymmetry hydrogenation of unfunctionalized exocyclic double carbon bonds. Also, it is used to test new NeoPHOX ligands derived from serine or threonine.
Bis(1,5-cyclooctadiene)diiridium(I) dichloride is an acid that can be prepared using a preparative method. It is an organometallic compound that can be used in the cross-coupling of activated terminal alkynes with aryl halides. Bis(1,5-cyclooctadiene)diiridium(I) dichloride has been synthesized by reacting furfural with chloride and acetonitrile. The ligand used was 2,2′-bipyridine. The reaction time to produce bis(1,5-cyclooctadiene)diiridium(I) dichloride is approximately three hours.
, Safety of Chloro(1,5-cyclooctadiene)iridium(I) dimer

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics