Tag: M.W=250-300

Wang, Bin published the artcileBase-mediated tandem sulfonylation and oximation of alkenes in water, HPLC of Formula: 32333-53-2, the publication is Green Chemistry (2017), 19(24), 5794-5799, database is CAplus.

A base-mediated bifunctionalization of alkenes such as ethenyl-benzene, methylene-cyclopentane, 1-hexene, etc. for the synthesis of α-sulfonylethanone oximes RC(=NOH)CH(R¹)SO₂R² (R = Ph, naphthalen-2-yl, (CH₂)₃CH₃, 4-(chloromethyl)phenyl, etc.; RR¹ = -(CH₂)₃-, R¹ = H, Br; R² = 4-methoxyphenyl, thiophen-2-yl, naphthalen-2-yl, CH₃C(O), etc.) was developed in water under metal-free conditions. This reaction features a wide substrate scope and facile starting materials to afford the desired products in high yields.

Green Chemistry published new progress about 32333-53-2. 32333-53-2 belongs to chlorides-buliding-blocks, auxiliary class Trifluoromethyl,Fluoride,Chloride,Sulfonyl chlorides,Benzene, name is 4-Chloro-3-(trifluoromethyl)benzenesulfonyl Chloride, and the molecular formula is C12H10FeO4, HPLC of Formula: 32333-53-2.

Referemce:
https://en.wikipedia.org/wiki/Chloride,
Chlorides – an overview | ScienceDirect Topics

Rhee, Sung W. published the artcileSynthesis of tritium labeled 4P-PDOT, a selective melatonin receptor antagonist, Quality Control of 18791-02-1, the publication is Journal of Labelled Compounds & Radiopharmaceuticals (2000), 43(9), 925-932, database is CAplus.

A selective MT2 melatonin receptor antagonist, 4-phenyl-2-propionamidotetralin (4P-PDOT), was prepared as a tritium-labeled compound with high specific activity and radiochem. purity. Catalytic hydrogenation of a unique vinyl bromo precursor was used to introduce the tritium.

Journal of Labelled Compounds & Radiopharmaceuticals published new progress about 18791-02-1. 18791-02-1 belongs to chlorides-buliding-blocks, auxiliary class Aliphatic Chain, name is 2,3-Dibromopropionylchloride, and the molecular formula is C3H3Br2ClO, Quality Control of 18791-02-1.

Referemce:
https://en.wikipedia.org/wiki/Chloride,
Chlorides – an overview | ScienceDirect Topics

Phillips, Duncan A. S. published the artcileThe dyeing performance on cotton of reactive dyes containing the α-bromoacrylamido group, Related Products of chlorides-buliding-blocks, the publication is Dyes and Pigments (1999), 43(2), 153-160, database is CAplus.

Three reactive azo dyes containing the α-bromoacrylamido group have been synthesized and their performance assessed for the exhaust dyeing of cotton. The results indicate that, when situated in the appropriate electronic environment in the dye mol., this reactive group is compatible with the sulfatoethylsulfonyl (vinylsulfonyl) group in delivering warm dyeing (60°C) characteristics.

Dyes and Pigments published new progress about 18791-02-1. 18791-02-1 belongs to chlorides-buliding-blocks, auxiliary class Aliphatic Chain, name is 2,3-Dibromopropionylchloride, and the molecular formula is C3H3Br2ClO, Related Products of chlorides-buliding-blocks.

Referemce:
https://en.wikipedia.org/wiki/Chloride,
Chlorides – an overview | ScienceDirect Topics

Griffiths, W. Richard published the artcileThe mass spectra of phosphonyl compounds. Part 3. Dimethyl- and diethylalkane and substituted-methane phosphonates, Category: chlorides-buliding-blocks, the publication is Phosphorus and Sulfur and the Related Elements (1978), 5(1), 101-6, database is CAplus.

The electron impact spectra of 28 related phosphonates were determined Et, Me₂CH, and Me₃C groups which are bound directly to P, fragment to the corresponding alkenes; similar Me₂CH, Me₃C groups in the di-Me esters also fragment to ethylene and propene, resp., i.e., the P-alkyl rearranges with transfer of the elements of a Me group to the P ion. The di-Et alkenephosphonates undergo double H rearrangements of an ethoxy group to give dihydroxyphosphonium ions. The di- and trihydroxyphosphonium ions have a characteristic fragmentation which involves loss of water. This characteristic has been used as evidence for the rearrangement of a phosphacylium ion to a dihydroxyphosphonium ion.

Phosphorus and Sulfur and the Related Elements published new progress about 866-23-9. 866-23-9 belongs to chlorides-buliding-blocks, auxiliary class Aliphatic Chain, name is Diethyltrichloromethylphosphonate, and the molecular formula is C5H10Cl3O3P, Category: chlorides-buliding-blocks.

Referemce:
https://en.wikipedia.org/wiki/Chloride,
Chlorides – an overview | ScienceDirect Topics

Ishiyama, Tatsuo published the artcileA stoichiometric aromatic C-H borylation catalyzed by iridium(i)/2,2′-bipyridine complexes at room temperature, Formula: C14H18BClO4, the publication is Angewandte Chemie, International Edition (2002), 41(16), 3056-3058, database is CAplus and MEDLINE.

Room-temperature C-H borylation using a stoichiometric amount of arenes and bis(pinacolato)diboron (pin₂B₂) is efficiently catalyzed by iridium(I) complexes generated from [{Ir(OMe)(cod)}₂] (cod = 1,5-cyclooctadiene) and 4,4′-di-tert-butyl-2,2′-bipyridine (dtbpy) in hexane, and provides the corresponding arylboronates in excellent yields. Thus, [{Ir(OMe)(cod)}₂]/dtbpy catalyzed C-H borylation of 1,2-dichlorobenzene with pin₂B₂ in hexane at 25° for 8h gave 82% 3,4-Cl₂C₆H₃Bpin.

Angewandte Chemie, International Edition published new progress about 408492-29-5. 408492-29-5 belongs to chlorides-buliding-blocks, auxiliary class Chloride,Boronic acid and ester,Benzene,Ester,Boronate Esters,Boronate Esters,Boronic acid and ester,, name is Methyl 3-chloro-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzoate, and the molecular formula is C14H18BClO4, Formula: C14H18BClO4.

Referemce:
https://en.wikipedia.org/wiki/Chloride,
Chlorides – an overview | ScienceDirect Topics

Ishiyama, Tatsuo published the artcileIridium-catalyzed C-H borylation of arenes and heteroarenes: 1-chloro-3-iodo-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzene and 2-(4,4,5,5,-tetramethyl-1,3,2-dioxaborolan-2-yl)indole, Computed Properties of 408492-29-5, the publication is Organic Syntheses (2005), 126-133, database is CAplus.

High yield C-H borylation of arenes and heteroarenes using pinacolborane or bis(pinacolato)diboron catalyzed by [Ir(OMe)(COD)]₂ and 4,4′-di-tert-butyl-2,2′-bipyridine occurs at room temperature

Organic Syntheses published new progress about 408492-29-5. 408492-29-5 belongs to chlorides-buliding-blocks, auxiliary class Chloride,Boronic acid and ester,Benzene,Ester,Boronate Esters,Boronate Esters,Boronic acid and ester,, name is Methyl 3-chloro-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzoate, and the molecular formula is C14H18BClO4, Computed Properties of 408492-29-5.

Referemce:
https://en.wikipedia.org/wiki/Chloride,
Chlorides – an overview | ScienceDirect Topics

Kim, Hun Young published the artcileReversal of Enantioselectivity Approach to BINOLs via Single and Dual 2-Naphthol Activation Modes, Quality Control of 21286-54-4, the publication is Organic Letters (2017), 19(14), 3867-3870, database is CAplus and MEDLINE.

A mechanism-driven enantiodivergent approach to chiral 1,1′-bi-2-naphthols via catalytic asym. oxidative coupling of 2-naphthol derivatives is described for the first time. By utilizing 2-naphthol derivatives with low oxidation potential, the substrates were activated by either chiral mononuclear or dinuclear vanadium(V) catalyst to promote distinctively different asym. reaction pathways: single vs. dual substrate activation mechanisms.

Organic Letters published new progress about 21286-54-4. 21286-54-4 belongs to chlorides-buliding-blocks, auxiliary class Chiral,Chloride,Sulfonyl chlorides,Aliphatic cyclic hydrocarbon,Ketone, name is ((1S,4R)-7,7-Dimethyl-2-oxobicyclo[2.2.1]heptan-1-yl)methanesulfonyl chloride, and the molecular formula is C10H15ClO3S, Quality Control of 21286-54-4.

Referemce:
https://en.wikipedia.org/wiki/Chloride,
Chlorides – an overview | ScienceDirect Topics

Le Menn, Jean Christophe published the artcileOrganic electrosynthesis without a potentiostat. Selectivity in the stepwise reduction of trichloromethylphosphonate: a representative experiment, Application In Synthesis of 866-23-9, the publication is Journal of Chemical Education (1991), 68(6), 513-14, database is CAplus.

Two experiments in organic electrosynthesis are presented that involve the stepwise reduction of trichloromethylphosphonate in aqueous solution Safety precautions for performing the experiment are also detailed.

Journal of Chemical Education published new progress about 866-23-9. 866-23-9 belongs to chlorides-buliding-blocks, auxiliary class Aliphatic Chain, name is Diethyltrichloromethylphosphonate, and the molecular formula is C5H10Cl3O3P, Application In Synthesis of 866-23-9.

Referemce:
https://en.wikipedia.org/wiki/Chloride,
Chlorides – an overview | ScienceDirect Topics

Pasha, Maira published the artcileOrganocatalytic diastereo- and enantioselective oxa-hetero-Diels-Alder reactions of enones with aryl trifluoromethyl ketones for the synthesis of trifluoromethyl-substituted tetrahydropyrans, Quality Control of 21286-54-4, the publication is Organic & Biomolecular Chemistry (2021), 19(42), 9242-9250, database is CAplus and MEDLINE.

Here diastereo- and enantioselective oxa-hetero-Diels-Alder reactions catalyzed by amine-based catalyst systems that afford trifluoromethyl-substituted tetrahydropyranones was reported. Catalyst systems and conditions suitable for the reactions to provide the desired diastereomer products with high enantioselectivities were identified, and various trifluoromethyl-substituted tetrahydropyranones were synthesized with high diastereo- and enantioselectivities. Mechanistic investigation suggested that the reactions involve a [4 + 2] cycloaddition pathway, in which the enamine of the enone acts as the diene and the ketone carbonyl group of the aryl trifluoromethyl ketone acts as the dienophile. In this study, tetrahydropyran derivatives with the desired stereochem. that are difficult to synthesize by previously reported methods were concisely obtained, and the range of tetrahydropyran derivatives that can be synthesized was expanded.

Organic & Biomolecular Chemistry published new progress about 21286-54-4. 21286-54-4 belongs to chlorides-buliding-blocks, auxiliary class Chiral,Chloride,Sulfonyl chlorides,Aliphatic cyclic hydrocarbon,Ketone, name is ((1S,4R)-7,7-Dimethyl-2-oxobicyclo[2.2.1]heptan-1-yl)methanesulfonyl chloride, and the molecular formula is C10H15ClO3S, Quality Control of 21286-54-4.

Referemce:
https://en.wikipedia.org/wiki/Chloride,
Chlorides – an overview | ScienceDirect Topics

Mamlouk, Hind published the artcileHighly active, separable and recyclable bipyridine iridium catalysts for C-H borylation reactions, COA of Formula: C13H18BClO3, the publication is Catalysis Science & Technology (2018), 8(1), 124-127, database is CAplus.

Iridium complexes generated from Ir(I) precursors and PIB oligomer functionalized bpy ligands efficiently catalyzed the reactions of arenes with bis(pinacolato)diboron under mild conditions to produce a variety of arylboronate compounds The activity of this PIB bound homogeneous catalyst is similar to that of an original non-recyclable catalyst which allows it to be used under milder conditions than other reported recyclable catalysts. This oligomer-supported Ir catalyst was successfully recovered through biphasic extraction and reused for eight cycles without a loss of activity. Biphasic separation after the initial use of the catalyst led to an insignificant amount of iridium leaching from the catalyst to the product, and no iridium leaching from the catalyst was observed in the subsequent recycling runs. Arylboronate products obtained after extraction are sufficiently pure as observed by ¹H and ¹³C-NMR spectroscopy that they do not require further purification

Catalysis Science & Technology published new progress about 929626-16-4. 929626-16-4 belongs to chlorides-buliding-blocks, auxiliary class Chloride,Boronic acid and ester,Benzene,Ether,Boronic Acids,Boronate Esters, name is 2-(3-Chloro-5-methoxyphenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane, and the molecular formula is C13H18BClO3, COA of Formula: C13H18BClO3.

Referemce:
https://en.wikipedia.org/wiki/Chloride,
Chlorides – an overview | ScienceDirect Topics