Abstract
Abstract Corey and Cane1 have reported that 1-diethylaminopropyne (1) can be lithiated with BuLi in the presence of TMEDA. This Li-ynamine 2 gives readily the 3-silylated derivative 3 upon a treatment with Me3SiCl. An effort to exdend this to phenylselenenylation of 2 failed. The reaction mixture had a band at 1940 cm−1 in the IR-spectrum probably indicating 1-selenenylation and an allene structure. The reagent 3 can be isolated, but is more conveniently prepared in situ.
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