New and simple synthesis of acid azides, ureas and carbamates from carboxylic acids: application of peptide coupling agents EDC and HBTU

VV Sureshbabu, HS Lalithamba, N Narendra…

Index: Organic and Biomolecular Chemistry, , vol. 8, # 4 p. 835 - 840

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Citation Number: 17

Abstract

... The Curtius rearrangement of acyl azides into isocyanates is of paramount value in synthetic chemistry. ... efficiently carried out through one-pot synthetic procedures which involve the chemical transformation of ... The organic layer was washed with 20% Na 2 CO 3 followed by HCl ...