Superbase catalysis of oxazolidin-2-one ring formation from carbon dioxide and prop-2-yn-1-amines under homogeneous or heterogenous conditions

GP Chiusoli

Index: Costa, Mirco; Chiusoli, Gian Paolo; Taffurelli, Davide; Dalmonego, Giulio Journal of the Chemical Society - Perkin Transactions 1, 1998 , # 9 p. 1541 - 1546

Full Text: HTML

Citation Number: 101

Abstract

N-alkyl-substituted prop-2-yn-1-amines and N-tri-, tetra-and penta-alkyl-substituted guanidines or other strong organic bases assemble under the action of carbon dioxide to afford carbamates, from which methyleneoxazolidinones 2 are formed by ring closure. If alkyl or cycloalkyl chains of appropriate length are present in the guanidines the reaction readily occurs under heterogenous conditions without solvent.