A. Shaabani et al., Reaction of 2-aminobenzimidazol: A simple one-pot synthesis of stable heterocyclic phosphorus ylides, SYN COMMUN, 31(17), 2001, pp. 2639-2644
Stable heterocyclic phosphorus ylides in excellent yields produced in the r
eaction between triphenylphosphine, dialkyl acetylenedicarboxylates and 2-a
minobenzimidazol in one-pot facile synthesis.