Three-component reaction access to S-alkyl dithiocarbamates under visible-light irradiation conditions in water

2022 ◽  
Author(s):  
Xuehao Li ◽  
Wenwen Cui ◽  
Qirong Deng ◽  
Xiuyan Song ◽  
Jian Lv ◽  
...  
Keyword(s):  
Visible Light ◽  
Visible Light Irradiation ◽  
Functional Group ◽  
Environmentally Friendly ◽  
Light Irradiation ◽  
Three Component Reaction

An efficient and environmentally friendly visible-light promoted method for the synthesis of S-alkyl dithiocarbamates with broad substrate scope and good functional group tolerance in water has been developed. Most appealingly,...

Acetylation of Alcohols and Amines under Visible Light Irradiation: Diacetyl as an Acylation Reagent and Photosensitizer

2021 ◽  
Author(s):  
Pengcheng Lian ◽  
Ruyi Li ◽  
Xiao Wan ◽  
Zixin Xiang ◽  
Hang Liu ◽  
...  
Keyword(s):  
Visible Light ◽  
Visible Light Irradiation ◽  
Functional Group ◽  
Environmentally Friendly ◽  
Light Irradiation ◽  
Environmentally Friendly Process

This work developed an unprecedented strategy for the acetylation of alcohols and amines using diacetyl as both an acylation reagent and photosensitizer. This environmentally friendly process exhibits excellent functional group...

scholarly journals Catalytic Asymmetric Allylation of Aldehydes with Alkenes Mediated by Organophotoredox and Chiral Chromium Hybrid Catalysis

2018 ◽  
Author(s):  
Harunobu Mitsunuma ◽  
Shun Tanabe ◽  
Hiromu Fuse ◽  
Kei Ohkubo ◽  
Motomu Kanai
Keyword(s):  
Visible Light ◽  
Hybrid System ◽  
Visible Light Irradiation ◽  
Room Temperature ◽  
Functional Group ◽  
Light Irradiation ◽  
Asymmetric Allylation ◽  
Complex Catalyst ◽  
Homoallylic Alcohols ◽  
Catalytic Asymmetric

A hybrid system accomplishing cooperativity between an organophotoredox acridinium catalyst and a chiral chromium<br>complex catalyst was developed, enabling the unprecedented exploitation of unactivated hydrocarbon alkenes as precursors to chiral allylchromium nucleophiles for the asymmetric allylation of aldehydes. The reaction proceeded under visible light irradiation at room temperature and with high functional group tolerance, affording the corresponding homoallylic alcohols with up to >20/1 diastereomeric ratio and 99% ee. The addition of Mg(ClO4)2 elicited profound enhancement of both reactivity and enantioselectivity.

Eosin Y-Sensitized Photocatalytic Reaction of Tertiary Aliphatic Amines with Arenesulfonyl Chlorides under Visible-Light Irradiation

Synlett ◽  
2017 ◽  
Vol 28 (13) ◽  
pp. 1630-1635 ◽  
Author(s):  
Ronghua Zhang ◽  
Yuguo Cai ◽  
Deli Sun ◽  
Song Xu ◽  
Qiguang Zhou
Keyword(s):  
Visible Light ◽  
Visible Light Irradiation ◽  
Environmentally Friendly ◽  
Light Irradiation ◽  
Aliphatic Amines ◽  
Eosin Y ◽  
Photocatalytic Reaction ◽  
Wide Range ◽  
Optimized Conditions ◽  
Selective Formation

A mild, practical, and environmentally friendly route to vinyl sulfones and sulfonamides has been developed based on the reaction of aliphatic amines with arenesulfonyl chlorides in the presence of eosin Y as a photocatalyst under visible light. The method permits the selective formation of vinyl sulfones or sulfonamides, depending on the oxidation environment and solvent. A wide range of products were obtained in moderate to good yields under the optimized conditions.

scholarly journals Catalytic Asymmetric Allylation of Aldehydes with Alkenes Mediated by Organophotoredox and Chiral Chromium Hybrid Catalysis

2018 ◽  
Author(s):  
Harunobu Mitsunuma ◽  
Shun Tanabe ◽  
Hiromu Fuse ◽  
Kei Ohkubo ◽  
Motomu Kanai
Keyword(s):  
Visible Light ◽  
Hybrid System ◽  
Visible Light Irradiation ◽  
Room Temperature ◽  
Functional Group ◽  
Light Irradiation ◽  
Asymmetric Allylation ◽  
Complex Catalyst ◽  
Homoallylic Alcohols ◽  
Catalytic Asymmetric

A hybrid system accomplishing cooperativity between an organophotoredox acridinium catalyst and a chiral chromium<br>complex catalyst was developed, enabling the unprecedented exploitation of unactivated hydrocarbon alkenes as precursors to chiral allylchromium nucleophiles for the asymmetric allylation of aldehydes. The reaction proceeded under visible light irradiation at room temperature and with high functional group tolerance, affording the corresponding homoallylic alcohols with up to >20/1 diastereomeric ratio and 99% ee. The addition of Mg(ClO4)2 elicited profound enhancement of both reactivity and enantioselectivity.

Photoinduced synthesis of (E)-vinyl sulfones through the insertion of sulfur dioxide

2018 ◽  
Vol 5 (21) ◽  
pp. 3153-3157 ◽  
Author(s):  
Tong Liu ◽  
Yechun Ding ◽  
Xiaona Fan ◽  
Jie Wu
Keyword(s):  
Sulfur Dioxide ◽  
Visible Light ◽  
Visible Light Irradiation ◽  
Light Irradiation ◽  
Mild Conditions ◽  
Three Component Reaction ◽  
Photoinduced Synthesis

Under visible light irradiation, a three-component reaction of potassium alkyltrifluoroborates, sulfur dioxide and alkynes with the assistance of photocatalysis and in the presence of copper(ii) triflate is described. This transformation affords (E)-vinyl sulfones efficiently with excellent regioselectivity and stereoselectivity under mild conditions.

Photocatalytic synthesis of unsymmetrical thiourea derivatives via visible-light irradiation using nitrogen-doped ZnO nanorods

2020 ◽  
Vol 44 (34) ◽  
pp. 14505-14512
Author(s):  
Mehdi Koohgard ◽  
Abdollah Masoudi Sarvestani ◽  
Mona Hosseini-Sarvari
Keyword(s):  
Visible Light ◽  
Visible Light Irradiation ◽  
Zno Nanorods ◽  
Environmentally Friendly ◽  
Light Irradiation ◽  
Thiourea Derivatives ◽  
Nitrogen Doped ◽  
Doped Zno ◽  
Photocatalytic Synthesis

N-ZnO as a photocatalyst under visible-light irradiation promoted an environmentally friendly route for the synthesis of unsymmetrical thiourea derivatives.

Photocatalytic hydrogenation of nitroarenes: supporting effect of CoOx on TiO2 nanoparticles

2019 ◽  
Vol 43 (2) ◽  
pp. 748-754 ◽  
Author(s):  
Srinivasa Rao Amanchi ◽  
K. V. Ashok Kumar ◽  
Bhairi Lakshminarayana ◽  
G. Satyanarayana ◽  
Ch. Subrahmanyam
Keyword(s):  
Solid State ◽  
Visible Light ◽  
Tio2 Nanoparticles ◽  
Visible Light Irradiation ◽  
Functional Group ◽  
Synthesis Method ◽  
Light Irradiation ◽  
Supporting Effect ◽  
High Yields ◽  
Solid State Synthesis Method

We report a nanocatalyst CoOx/TiO2 with different loadings of CoOx by a solid state synthesis method for the green hydrogenation of nitroarenes under visible light irradiation. Notably, we observed very good selectivity, conversion and functional group tolerance with high yields.

Synthesis of thiophosphates through a three-component reaction by using sulfur dioxide as the sulfur source

2017 ◽  
Vol 4 (11) ◽  
pp. 2221-2225 ◽  
Author(s):  
Xinxing Gong ◽  
Jiahao Chen ◽  
Jianhe Liu ◽  
Jie Wu
Keyword(s):  
Sulfur Dioxide ◽  
Visible Light ◽  
Visible Light Irradiation ◽  
Light Irradiation ◽  
Sulfur Source ◽  
Three Component Reaction

Generation of thiophosphates through a three-component reaction of diaryliodonium tetrafluoroborates, 1,4-diazabicyclo[2.2.2]octane-sulfur dioxide (DABCO·(SO2)2), and diarylphosphine oxides under visible light irradiation is described.

Substituted Hantzsch esters as radical reservoirs with the insertion of sulfur dioxide under photoredox catalysis

2019 ◽  
Vol 55 (14) ◽  
pp. 2062-2065 ◽  
Author(s):  
Xuefeng Wang ◽  
Haozhe Li ◽  
Guanyinsheng Qiu ◽  
Jie Wu
Keyword(s):  
Sulfur Dioxide ◽  
Visible Light ◽  
Visible Light Irradiation ◽  
Light Irradiation ◽  
Photoredox Catalysis ◽  
Three Component Reaction ◽  
Vinyl Azides

A three-component reaction between 4-substituted Hantzsch esters, DABCO·(SO2)2, and vinyl azides in the presence of photoredox catalysts under visible light irradiation is developed. A range of (Z)-2-(alkylsulfonyl)-1-arylethen-1-amines is obtained in moderate to good yields with good regioselectivity and stereoselectivity.

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