Category: 5153-70-8

Zhang, Mengmeng; Yang, Liming; Yang, Hui; An, Guanghui; Li, Guangming published the artcile< Visible Light Mediated C(sp3)-H Alkenylation of Cyclic Ethers Enabled by Aryl Ketone>, Related Products of 5153-70-8, the main research area is alkenyl ether diastereoselective preparation; ether nitroalkene visible light mediated alkenylation pentacenetetrone photocatalyst.

C-H Alkenylation of cyclic ethers (THF, 1,4-dioxane) using the readily available nitroalkenes as the alkenylating reagents which gave α-alkenyl ethers Ar(CH:CH)nR [Ar = Ph, 2-naphthyl, 2-thienyl, etc.; R = 1,2-dimethoxyethane, tetrahydrofuran-2-yl, 1,4-dioxan-2-yl] with high E-selectivity was developed. The mechanism study revealed that alkenylation proceeded through a proton coupled electron transfer (PCET) process with a de-nitration.

ChemCatChem published new progress about Alkenes, nitro Role: RCT (Reactant), RACT (Reactant or Reagent). 5153-70-8 belongs to class chlorides-buliding-blocks, and the molecular formula is C8H6ClNO2, Related Products of 5153-70-8.

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

Saha, Arijit; Wu, Chia-Ming; Peng, Rui; Koodali, Ranjit; Banerjee, Subhash published the artcile< Facile Synthesis of 1,3,5-Triarylbenzenes and 4-Aryl-NH-1,2,3-Triazoles Using Mesoporous Pd-MCM-41 as Reusable Catalyst>, Related Products of 5153-70-8, the main research area is triarylbenzene preparation nitrostyrene denitrative cyclotrimerization MCM41 supported palladium catalyst; triazole preparation nitrostyrene denitrative cycloaddition MCM41 supported palladium catalyst.

We report mesoporous nano-Pd-MCM-41 catalyzed rapid and efficient synthesis of 1,3,5-triarylbenzenes via de-nitrative cyclotrimerization of β-nitrostyrenes. All the reactions were very fast and high yielding. The Pd-MCM-41 was also very effective in catalyzing de-nitrative [3+2] cycloaddition of β-nitrostyrenes with TMSN3 to synthesize 4-aryl-NH-1,2,3-triazoles. The catalyst was reused at least up to eight times with min. loss of catalytic activity.

European Journal of Organic Chemistry published new progress about [3+2] Cycloaddition reaction (denitrative). 5153-70-8 belongs to class chlorides-buliding-blocks, and the molecular formula is C8H6ClNO2, Related Products of 5153-70-8.

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

Ambala, Srinivas; Singh, Rohit; Singh, Maninder; Cham, Pankaj Singh; Gupta, Ria; Munagala, Gurunadham; Yempalla, Kushalava Reddy; Vishwakarma, Ram A.; Singh, Parvinder Pal published the artcile< Metal-free, room temperature, acid-K2S2O8 mediated method for the nitration of olefins: an easy approach for the synthesis of nitroolefins>, Application In Synthesis of 5153-70-8, the main research area is alkene sodium nitrate potassium persulfate TFA promoter diastereoselective nitration; nitroalkene preparation.

A simple, room temperature method for the nitration of olefins by using inexpensive sodium nitrite as a source of nitro groups in the presence of trifluoroacetic acid (TFA) and potassium persulfate (K2S2O8) under an open atm. Styrenes and mono-substituted olefins give stereo-selective corresponding E-nitroolefins under optimized conditions, however, 1,1-bisubstituted olefins give a mixture of E- and Z-nitroolefins. The optimized conditions work well with electron-donating, electron-withdrawing, un-substituted and heterocyclic styrenes and mono-substituted olefins and gave corresponding nitroolefins with good to excellent yields.

RSC Advances published new progress about Alkenes, nitro Role: SPN (Synthetic Preparation), PREP (Preparation). 5153-70-8 belongs to class chlorides-buliding-blocks, and the molecular formula is C8H6ClNO2, Application In Synthesis of 5153-70-8.

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

Ganesan, Divakar; Chennapuram, Madhu; Begum, Zubeda; Seki, Chigusa; Okuyama, Yuko; Kwon, Eunsang; Uwai, Koji; Tokiwa, Michio; Tokiwa, Suguru; Takeshita, Mitsuhiro; Nakano, Hiroto published the artcile< Sugar based γ-amino alcohol organocatalyst for asymmetric michael addition of β-keto esters with nitroolefins>, Application In Synthesis of 5153-70-8, the main research area is sugar amino alc organocatalyst Michael addition ketoester nitroolefin.

Sugar based γ-amino alc. was used in asym. Michael addition of β-keto esters with nitroolefins for the first time affording the corresponding several chiral Michael adducts bearing quaternary chiral carbon center in moderate to good chem. yields and stereoselectivities (up to 98%, up to dr. 95:5, up to 84% ee).

Heterocycles published new progress about Alkenes, nitro Role: RCT (Reactant), RACT (Reactant or Reagent). 5153-70-8 belongs to class chlorides-buliding-blocks, and the molecular formula is C8H6ClNO2, Application In Synthesis of 5153-70-8.

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

Warias, Rico; Ragno, Daniele; Massi, Alessandro; Belder, Detlev published the artcile< A Visible-Light-Powered Polymerization Method for the Immobilization of Enantioselective Organocatalysts into Microreactors>, Electric Literature of 5153-70-8, the main research area is photopolymerization enantioselective organocatalyst Michael addition polystyrene microreactor; flow chemistry; immobilization; microreactors; organocatalysis; photopolymerization.

A versatile one-step photopolymerization approach for the immobilization of enantioselective organocatalysts is presented. Chiral organocatalyst-containing monoliths based on polystyrene divinylbenzene copolymer were generated inside channels of microfluidic chips. Exemplary performance tests were performed for the monolithic Hayashi-Joergensen catalyst in continuous flow, which showed good results for the Michael addition of aldehydes to nitroalkenes in terms of stereoselectivity and catalyst stability with minimal consumption of reagents and solvents.

Chemistry – A European Journal published new progress about Amination. 5153-70-8 belongs to class chlorides-buliding-blocks, and the molecular formula is C8H6ClNO2, Electric Literature of 5153-70-8.

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

Yang, Mengchen; Chen, Chen; Yi, Xing; Li, Yuan; Wu, Xiaoqin; Li, Qingshan; Ban, Shurong published the artcile< Thiosquaramide-catalysed asymmetric double Michael addition of 2-(3H)-furanones to nitroolefines>, Reference of 5153-70-8, the main research area is nitroalkene furanone thiosquaramide catalyst distereoselective enantioselective Michael reaction; bis nitroethyl furanone preparation.

New chiral thiosquaramides and their applications in catalytic asym. double addition of 5-methyl-2(3H)-furanones to nitroolefins were described. Enantiomerically enriched 2,4,4-trisubstituted butenolides bearing a quaternary stereogenic center could be smoothly constructed with high diastereoselectivities (up to >99 : 1 dr) and excellent enantioselectivities (up to 95% ee) under mild conditions.

Organic & Biomolecular Chemistry published new progress about Alkanes, nitro Role: PRP (Properties), SPN (Synthetic Preparation), PREP (Preparation). 5153-70-8 belongs to class chlorides-buliding-blocks, and the molecular formula is C8H6ClNO2, Reference of 5153-70-8.

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

Mishra, Aniket; Mukherjee, Upasana; Sarkar, Writhabrata; Meduri, Sudha Lahari; Bhowmik, Arup; Deb, Indubhusan published the artcile< Diastereoselective Spirocyclization of Cyclic N-Sulfonyl Ketimines with Nitroalkenes via Iridium-Catalyzed Redox-Neutral Cascade Reaction>, Recommanded Product: (E)-1-Chloro-4-(2-nitrovinyl)benzene, the main research area is diastereoselective spirocyclization cyclic sulfonyl ketimine nitroalkene; iridium catalyst redox neutral cascade reaction.

An Ir(III)-catalyzed [3 + 2] annulation of weakly coordinating N-sulfonyl ketimines with challenging α, β-unsaturated nitro olefins has been achieved via redox-neutral C-H functionalization in the presence of a catalytic amount of silver hexafluoroantimonate. The generation of three consecutive stereogenic centers in a single step via direct C-H functionalization is the prime feature of this methodol. A wide array of pharmaceutically relevant nitro-substituted spirocyclic benzosultams was synthesized with good to excellent diastereoselectivity as well as in high yield starting from easily accessible substrates.

Organic Letters published new progress about Alkenes, nitro Role: RCT (Reactant), RACT (Reactant or Reagent) (stereoselective). 5153-70-8 belongs to class chlorides-buliding-blocks, and the molecular formula is C8H6ClNO2, Recommanded Product: (E)-1-Chloro-4-(2-nitrovinyl)benzene.

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

Tsygankov, Alexey A.; Chusov, Denis published the artcile< Straightforward Access to High-Performance Organometallic Catalysts by Fluoride Activation: Proof of Principle on Asymmetric Cyanation, Asymmetric Michael Addition, CO2 Addition to Epoxide, and Reductive Alkylation of Amines by Tetrahydrofuran>, Category: chlorides-buliding-blocks, the main research area is fluoride activated organometallic catalyst preparation; asym cyanation Michael addition reductive alkylation.

The well-known transition metal catalysts can be transformed into high-performance versions by the simple use of a fluoride anion source. In situ fluoride-activated catalysts are highly active catalytic species. The isolation may lead to degradation of the species or a decrease in catalytic activity. Fluoride activation of known, relatively simple catalysts resulted in the development of one of the most efficient catalytic systems for the asym. cyanation of aldehydes, asym. Michael addition, and synthesis of cyclic carbonates. Furthermore, the fluoride-assisted reductive opening of THF with amines was developed. The proposed approach can find broad applications in the enhancement of known catalytic processes and in the design of new ones.

ACS Catalysis published new progress about Alkenes, nitro Role: SPN (Synthetic Preparation), PREP (Preparation). 5153-70-8 belongs to class chlorides-buliding-blocks, and the molecular formula is C8H6ClNO2, Category: chlorides-buliding-blocks.

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