The Reaction of N-Isocyaniminotriphenylphosphorane with Ester Derivatives of 2-Oxopropyl Alcohol (2-Oxopropyl 4-Bromobenzoate, 2-Oxopropyl Benzoate, and 2-Oxopropyl Acetate) in the Presence of Aromatic Carboxylic Acids: A One-Pot Efficient Three-Component
Reactions of N‐isocyaniminotriphenylphosphorane with ester derivatives of 2‐oxopropyl alcohol (2‐oxopropyl 4‐bromobenzoate, 2‐oxopropyl benzoate, and 2‐oxopropyl acetate) in the presence of aromatic carboxylic acids proceed smoothly at room temperature and in neutral conditions to afford sterically congested 1,3,4‐oxadiazole derivatives in high yields. The reaction proceeds smoothly and cleanly under