Ethyl‐2‐Cyano‐2‐(2‐Nitrophenylsulfonyloximino)Acetate (ortho‐NosylOXY) Mediated One‐Pot Racemization Free Synthesis of Ureas, Carbamates, and Thiocarbamates via Curtius Rearrangement

Direct conversion of carboxylic acids to ureas, carbamates, and thiocarbamates in a single pot via Curtius rearrangement is accomplished. One recently established coupling reagent, Ethyl‐2‐cyano‐2‐(2‐nitrophenylsulfonyloximino)acetate (ortho‐NosylOXY, I), is successfully used for the racemization fr...

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Veröffentlicht in:	Asian journal of organic chemistry 2021-06, Vol.10 (6), p.1523-1529
Hauptverfasser:	Kalita, Tapasi, Dev, Dharm, Mondal, Sandip, Giri, Rajat Subhra, Mandal, Bhubaneswar
Format:	Artikel
Sprache:	eng
Schlagworte:	Alcohols Amino acids carbamates Carbamates (tradename) Carboxylic acids Curtius rearrangement Direct conversion Esters NMR Nuclear magnetic resonance Nucleophiles o-NosylOXY Organic chemistry Racemization racemization free Reagents Synthesis thiocarbamates Thiols Ureas
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