Synthesis and transformations of alkyl N-(1-cyclohex-3-enyl)carbamates prepared from cyclohex-3-ene carboxylic acid via Curtius rearrangement
作者:Elena Gómez-Sánchez、José Marco-Contelles
DOI:10.1016/j.tet.2004.11.037
日期:2005.1
The Curtiusrearrangement of cyclohex-3-ene carboxylic acid using diphenylphosphoryl azide in the presence of triethylamime and ethanol, t-butanol or benzyl alcohol has been described. As a result the synthesis of ethyl, t-butyl or benzyl N-(1-cyclohex-3-enyl)carbamates has been achieved in one pot, in good chemical yield. A series of transformations of benzyl N-(1-cyclohex-3-enyl)carbamate, such as