Preparation of 1-Alkynyl (Trimethyl) Silanes from Trimethylsilylpropargyl Phenyl Ether and Organoboranes

Abstract

Organoboranes have been recently demonstrated to be highly versatile reagents and intermediates for organic synthesis.¹ Several papers have been reported dealing with allenic or propargylic boranes for such purposes.² On the other hand, organosilicon compounds have become increasingly important in synthetic chemistry.³ In search of finding novel synthetic applications by combination of organoboranes and organosilanes, we examined a synthesis of 1-alkynyl (trimethyl) silanes from trimethylsilylpropargyl phenyl ether and trialkylboranes.