Transition metal-free oxidative esterification of benzylic alcohols in aqueous medium

2014 ◽  
Vol 12 (46) ◽  
pp. 9453-9456 ◽  
Author(s):  
Supravat Samanta ◽  
Venkatanarayana Pappula ◽  
Milan Dinda ◽  
Subbarayappa Adimurthy
Keyword(s):  
Transition Metal ◽  
Aqueous Medium ◽  
Oxidative Esterification ◽  
Benzylic Alcohols ◽  
Metal Free

A remarkable effect of ionic liquids in transition-metal-free aerobic oxidation of benzylic alcohols

2011 ◽  
Vol 52 (41) ◽  
pp. 5392-5394 ◽  
Author(s):  
Yoshiro Oda ◽  
Koji Hirano ◽  
Tetsuya Satoh ◽  
Susumu Kuwabata ◽  
Masahiro Miura
Keyword(s):  
Ionic Liquids ◽  
Transition Metal ◽  
Aerobic Oxidation ◽  
Remarkable Effect ◽  
Benzylic Alcohols ◽  
Metal Free

Transition metal free oxidative esterification of alcohols with toluene

2013 ◽  
Vol 54 (39) ◽  
pp. 5383-5386 ◽  
Author(s):  
Lianghui Liu ◽  
Lin Yun ◽  
Zikuan Wang ◽  
Xuefeng Fu ◽  
Chun-hua Yan
Keyword(s):  
Transition Metal ◽  
Oxidative Esterification ◽  
Metal Free

ChemInform Abstract: Transition Metal Free Oxidative Esterification of Alcohols with Toluene.

ChemInform ◽  
2014 ◽  
Vol 45 (5) ◽  
pp. no-no
Author(s):  
Lianghui Liu ◽  
Lin Yun ◽  
Zikuan Wang ◽  
Xuefeng Fu ◽  
Chun-hua Yan
Keyword(s):  
Transition Metal ◽  
Oxidative Esterification ◽  
Metal Free

ChemInform Abstract: A Remarkable Effect of Ionic Liquids in Transition-Metal-Free Aerobic Oxidation of Benzylic Alcohols.

ChemInform ◽  
2012 ◽  
Vol 43 (5) ◽  
pp. no-no
Author(s):  
Yoshiro Oda ◽  
Koji Hirano ◽  
Tetsuya Satoh ◽  
Susumu Kuwabata ◽  
Masahiro Miura
Keyword(s):  
Ionic Liquids ◽  
Transition Metal ◽  
Aerobic Oxidation ◽  
Remarkable Effect ◽  
Benzylic Alcohols ◽  
Metal Free

Chemoselective and Metal-Free Synthesis of Aryl Esters from the Corresponding Benzylic Alcohols in Aqueous Medium Using TBHP/TBAI as an Efficient Catalytic System

Synlett ◽  
2018 ◽  
Vol 29 (16) ◽  
pp. 2208-2212
Author(s):  
Sanjay Bhar ◽  
Sneha Nandy ◽  
Avishek Ghatak ◽  
Asit Das
Keyword(s):  
Transition Metal ◽  
Catalytic Amount ◽  
High Yield ◽  
Primary Alcohols ◽  
Benzylic Alcohols ◽  
Metal Free ◽  
Tishchenko Reaction ◽  
Tert Butyl Hydroperoxide ◽  
Wide Range ◽  
Tetrabutylammonium Iodide

A novel and transition-metal-free strategy has been developed for the synthesis of aryl esters starting from corresponding benzylic primary alcohols as the exclusive substrates using tert-butyl hydroperoxide (TBHP) as a terminal oxidant in the presence of catalytic amount of tetrabutylammonium iodide (TBAI) and imidazole, where the aliphatic alcohols remained unaffected. These reactions are highly chemoselective and associated with high yield and wide applicability accommodating a wide range of substituents. Excellent chemoselectivity has also been demonstrated through intramolecular competition experiments. This protocol can be considered as an important analogue of Tishchenko reaction using benzylic alcohols as the substrates instead of benzaldehydes.

Transition-metal-free catalytic hydroboration reduction of amides to amines

2020 ◽  
Vol 7 (21) ◽  
pp. 3515-3520
Author(s):  
Wubing Yao ◽  
Jiali Wang ◽  
Aiguo Zhong ◽  
Shiliang Wang ◽  
Yinlin Shao
Keyword(s):  
Transition Metal ◽  
Selective Catalytic Reduction ◽  
Catalytic Reduction ◽  
Value Added ◽  
Metal Free

The selective catalytic reduction of amides to value-added amine products is a desirable but challenging transformation.

Deaminative carbonylative thioesterification of activated alkylamines with thiophenols under transition-metal-free conditions

2021 ◽  
Author(s):  
Fengqian Zhao ◽  
Xiao-Feng Wu
Keyword(s):  
Free Radical ◽  
Transition Metal ◽  
Metal Free

A transition-metal-free radical carbonylation of activated alkylamines with thiophenols has been successfully developed. Various thioesters were selectively produced with moderate to good yields.

Regioselective C3-H Trifluoromethylation of 2H-Indazole Under Transition-Metal-Free Photoredox Catalysis

2019 ◽  
Author(s):  
Arumugavel Murugan ◽  
Venkata Nagarjuna Babu ◽  
Nagaraj Sabarinathan ◽  
Sharada Duddu. S
Keyword(s):  
Transition Metal ◽  
Visible Light ◽  
Practical Approach ◽  
Hypervalent Iodine ◽  
Radical Mechanism ◽  
Photoredox Catalysis ◽  
Metal Free

Here we report a visible-light-promoted metal-free regioselective C3-H trifluoromehtylation reaction that proceeds via radical mechanism and which supported by control experiments. The combination of photoredox catalysis and hypervalent iodine reagent provides a practical approach for the present trifluoromethylation reaction and synthesis of a library of trifluoromethylated indazoles.

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