scholarly journals Vitamin B1-catalyzed aerobic oxidative esterification of aromatic aldehydes with alcohols

RSC Advances ◽  
2021 ◽  
Vol 11 (49) ◽  
pp. 30937-30942
Author(s):  
Xin-Long Luo ◽  
Danhua Ge ◽  
Zi-Lun Yu ◽  
Xue-Qiang Chu ◽  
Pei Xu
Keyword(s):  
Vitamin B1 ◽  
Aromatic Aldehydes ◽  
Cost Effective ◽  
Oxidative Esterification ◽  
Metal Free ◽  
Aryl Aldehydes

An aerobic oxidative esterification of aryl aldehydes with alcohols has been developed by employing vitamin B1 as a cost-effective, metal-free, and eco-friendly NHC catalyst.

Synthesis of 2-Aryl-5-alkyl-fulleropyrrolidines: Metal-Free-Mediated Reaction of [60]Fullerene with Aromatic Aldehydes and Inactive Primary Amines

2017 ◽  
Vol 82 (16) ◽  
pp. 8617-8627 ◽  
Author(s):  
Meng Zhang ◽  
Hui-Juan Wang ◽  
Fa-Bao Li ◽  
Xin-Xin Zhong ◽  
Yong-Shun Huang ◽  
...  
Keyword(s):  
Aromatic Aldehydes ◽  
Primary Amines ◽  
Metal Free

Facile Access to Triazole-Fused 3,1-Benzoxazines Enabled by Metal-Free Base-Promoted Intramolecular C–O Coupling

Synthesis ◽  
2021 ◽  
Author(s):  
Yury N. Kotovshchikov ◽  
Stepan S. Tatevosyan ◽  
Gennadij V. Latyshev ◽  
Nikolay V. Lukashev ◽  
Irina P. Beletskaya
Keyword(s):  
Transition Metal ◽  
Functional Group ◽  
Cost Effective ◽  
Reductive Cleavage ◽  
Effective Procedure ◽  
Free Base ◽  
Metal Free ◽  
Fused Heterocycles ◽  
Convenient Approach

AbstractA convenient approach to assemble 1,2,3-triazole-fused 4H-3,1-benzoxazines has been developed. Diverse alcohol-tethered 5-iodotriazoles, readily accessible by a modified protocol of Cu-catalyzed (3+2)-cycloaddition, were utilized as precursors of the target fused heterocycles. The intramolecular C–O coupling proceeded efficiently under base-mediated transition-metal-free conditions, furnishing cyclization products in yields up to 96%. Suppression of the competing reductive cleavage of the C–I bond was achieved by the use of Na2CO3 in acetonitrile at 100 °C. This practical and cost-effective procedure features a broad substrate scope and valuable functional group tolerance.

UV light-mediated difunctionalization of alkenes with CF3SO2Na: synthesis of trifluoromethyl phenanthrene and anthrone derivatives

2016 ◽  
Vol 14 (23) ◽  
pp. 5293-5297 ◽  
Author(s):  
Bing Li ◽  
Dan Fan ◽  
Chao Yang ◽  
Wujiong Xia
Keyword(s):  
Uv Light ◽  
Cost Effective ◽  
Metal Free

A metal-free and cost-effective protocol for UV light-mediated difunctionalization of alkenes with CF3SO2Na was developed.

Efficient hydrogen peroxide synthesis by metal-free polyterthiophene via photoelectrocatalytic dioxygen reduction

2020 ◽  
Vol 13 (1) ◽  
pp. 238-245 ◽  
Author(s):  
Wenjun Fan ◽  
Bingqing Zhang ◽  
Xiaoyu Wang ◽  
Weiguang Ma ◽  
Deng Li ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Oxygen Reduction ◽  
Cost Effective ◽  
High Concentration ◽  
Metal Free ◽  
Dioxygen Reduction ◽  
Polymeric Semiconductor ◽  
Hydrogen Peroxide Synthesis

We demonstrate the metal-free polymeric semiconductor pTTh as a selective and efficient photocathode for photoelectrochemical oxygen reduction to a high concentration of H2O2 in a cost-effective way.

Base-promoted aerobic oxidative synthesis of fused 1,3,5-triazines under metal-free conditions

2020 ◽  
Vol 22 (20) ◽  
pp. 6778-6782
Author(s):  
Jinjin Chen ◽  
Zhaozhao Sun ◽  
Fuhong Xiao ◽  
Guo-Jun Deng
Keyword(s):  
Aerobic Oxidation ◽  
Aromatic Aldehydes ◽  
Ammonium Iodide ◽  
Metal Free

An efficient base-promoted aerobic oxidation procedure for the synthesis of fused 1,3,5-triazines from 2-aminobenzimidazoles, aromatic aldehydes, and ammonium iodide under metal-free conditions has been developed.

ChemInform Abstract: A Formal Metal-Free N-Arylation via the Schmidt Reaction of Aromatic Aldehydes with an Azido Amine.

ChemInform ◽  
2013 ◽  
Vol 44 (26) ◽  
pp. no-no
Author(s):  
Peiming Gu ◽  
Jian Sun ◽  
Xiao-Yan Kang ◽  
Ming Yi ◽  
Xue-Qiang Li ◽  
...  
Keyword(s):  
Aromatic Aldehydes ◽  
Schmidt Reaction ◽  
Metal Free

Calcium and magnesium chlorides-catalyzed oxidative esterification of aromatic aldehydes

2014 ◽  
Vol 55 (9) ◽  
pp. 1657-1659 ◽  
Author(s):  
Jian-Bo Feng ◽  
Jin-Long Gong ◽  
Qin Li ◽  
Xiao-Feng Wu
Keyword(s):  
Aromatic Aldehydes ◽  
Oxidative Esterification ◽  
Calcium And Magnesium
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