Rhodium-Catalyzed Conjugate Addition of Sb-Aryl-1,5-azastibocines to α,β-Unsaturated Carbonyl Compounds
摘要:
Rhodium-catalyzed conjugate addition of Sb-aryl-1,5-azastibocines to alpha,beta-unsaturated carbonyl compounds is described. The rhodium-catalyzed reaction was carried out in aqueous N-methy-2-pyrrolidinone (NMP) to give 1,4-conjugate adduct exclusively, while the palladium catalyzed reaction gave only Heck-type adduct. The 1,4-addition of various aryl groups such as substituted benzenes and thiophenes was achieved with various Crones and enoates.