Sonogashira Coupling with Aqueous Ammonia Directed to the Synthesis of Azotolane Derivatives.

Abstract

Azo compounds Q 0160 Sonogashira Coupling with Aqueous Ammonia Directed to the Synthesis of Azotolane Derivatives. -Sonogashira coupling of terminal alkynes with aryl iodides takes place efficiently in the presence of aqueous ammonia. The methodology is successfully applied to the synthesis of various azotolanes (VI). -(AHMED, M. S. M.; MORI*, A.; Tetrahedron 60 (2004) 44, 9977-9982; Chem. Resour. Lab., Tokyo Inst. Technol., Yokohama 226, Japan; Eng.) -H. Toeppel 04-086