Rm. Alvarez et al., THE SEARCH FOR THE ETHYNYL CATION - NITROSATION OF N,N-BIS (TRIMETHYLSILYL)YNAMINES, Journal of physical organic chemistry, 8(3), 1995, pp. 191-194
The reaction of bis-silylated ynamines with different nitrosyl reagent
s affords products derived from an electrophilic attack at the beta-ca
rbon atom and not the expected alkynyldiazonium salts.