amide activation
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General Synthesis of Fully Substituted 4-Aminooxazoles from Amides and 1,4,2-Dioxazol-5-ones Based on Amide Activation and Umpolung Process

2020 ◽  
Vol 86 (1) ◽  
pp. 199-206
Author(s):  
Yunxiang Weng ◽  
Lin Min ◽  
Lidong Shan ◽  
Hongchen Li ◽  
Xinyan Wang ◽  
...  
Keyword(s):  
General Synthesis ◽  
Amide Activation

scholarly journals Chemoselective α-Sulfidation of Amides Using Sulfoxide Reagents

2020 ◽  
Author(s):  
Mario Leypold ◽  
Kyan A. D’Angelo ◽  
Mohammad Movassaghi
Keyword(s):  
Critical Role ◽  
Single Step ◽  
Mechanistic Studies ◽  
Selective Functionalization ◽  
Sulfonium Ions ◽  
Activation Conditions ◽  
Tertiary Amides ◽  
Amide Activation

The direct α-sulfidation of tertiary amides using sulfoxide reagents under electrophilic amide activation conditions is described. Employing readily available reagents, selective functionalization takes place to generate isolable sulfonium ions en route to α-sulfide amides. Mechanistic studies support the critical role of activated sulfoxides that promote the desired transformation. For benzylic amide substrates, a single-step protocol featuring a spontaneous dealkylation step of a sulfonium ion intermediate was developed.

scholarly journals Chemoselective α-Sulfidation of Amides Using Sulfoxide Reagents

2020 ◽  
Author(s):  
Mario Leypold ◽  
Kyan A. D’Angelo ◽  
Mohammad Movassaghi
Keyword(s):  
Critical Role ◽  
Single Step ◽  
Mechanistic Studies ◽  
Selective Functionalization ◽  
Sulfonium Ions ◽  
Activation Conditions ◽  
Tertiary Amides ◽  
Amide Activation

The direct α-sulfidation of tertiary amides using sulfoxide reagents under electrophilic amide activation conditions is described. Employing readily available reagents, selective functionalization takes place to generate isolable sulfonium ions en route to α-sulfide amides. Mechanistic studies support the critical role of activated sulfoxides that promote the desired transformation. For benzylic amide substrates, a single-step protocol featuring a spontaneous dealkylation step of a sulfonium ion intermediate was developed.

scholarly journals Synthesis of Novel Heterocycles by Amide Activation and Umpolung Cyclization

2020 ◽  
Vol 22 (6) ◽  
pp. 2376-2380
Author(s):  
Haoqi Zhang ◽  
Margaux Riomet ◽  
Alexander Roller ◽  
Nuno Maulide
Keyword(s):  
Amide Activation

Single-Step Synthesis of Nitrogen-Doped Porous Carbons for CO2 Capture by Low-Temperature Sodium Amide Activation of Petroleum Coke

2018 ◽  
Vol 32 (12) ◽  
pp. 12787-12794 ◽  
Author(s):  
Linli Rao ◽  
Shenfang Liu ◽  
Jiao Chen ◽  
Linlin Wang ◽  
Liying An ◽  
...  
Keyword(s):  
Low Temperature ◽  
Petroleum Coke ◽  
Co2 Capture ◽  
Single Step ◽  
Porous Carbons ◽  
Nitrogen Doped ◽  
Sodium Amide ◽  
Amide Activation

Low-Temperature and Single-Step Synthesis of N-Doped Porous Carbons with a High CO2 Adsorption Performance by Sodium Amide Activation

2018 ◽  
Vol 32 (10) ◽  
pp. 10830-10837 ◽  
Author(s):  
Linli Rao ◽  
Limin Yue ◽  
Linlin Wang ◽  
Zhenzhen Wu ◽  
Changdan Ma ◽  
...  
Keyword(s):  
Low Temperature ◽  
Co2 Adsorption ◽  
Single Step ◽  
Porous Carbons ◽  
High Co2 ◽  
Adsorption Performance ◽  
Sodium Amide ◽  
Amide Activation
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