Organic chemistry
1. Preparation of sterically congested 1,3,4-oxadiazole derivatives from N-isocyaniminotriphenylphosphorane, aromatic acids, cyclopentanone and primary amines

Hamideh Javanbani; Ali Ramazani; Sang Woo Joo; Yavar Ahmadi; Vahid Azizkhani; Pegah Azimzadeh Asiabi

Volume 3, Issue 4, pp. 283-387, Serial No. 9 , Autumn 2015, , Pages 310-322

Abstract
  Reactions of N-isocyaniminotriphenylphosphorane with cyclopentanone have been studied in the presence of aromatic carboxylic acids and primary amines, proceeds smoothly at room temperature under neutral conditions to afford sterically congested 1,3,4-oxadiazole derivatives by an intramolecular Aza-Wittig ...  Read More

Preparation of sterically congested 1,3,4-oxadiazole derivatives from N-isocyaniminotriphenylphosphorane, aromatic acids, cyclopentanone and primary amines