Addition of Metal Cyanides toTosylhydrazones of Aldehydes in Aprotic Solvents: A NewMethod for One-Carbon Homologation of Aldehydes and forthe Synthesis of α-(<i>N</i>
<sup>2</sup>-Tosylhydrazino)nitriles
作者:Jerzy Wicha、Stanisław Marczak
DOI:10.1055/s-2003-39161
日期:——
One-carbonhomologation of aldehydes to nitriles via reaction of the respective tosylhydrazones with trimethylsilyl cyanide, tributyltin cyanide and diethylaluminum cyanide with or without Lewis acid-type catalysts was examined. Representative tosylhydrazones on treatment with trimethylsilyl cyanide in the presence of trimethylsilyl triflate or scandium triflate afforded α-(N 2 -tosylhydraziono)nitriles