136583-65-8Relevant academic research and scientific papers
Reaction of Tantalum-Alkyne Complexes with Isocyanates Leading to (E)-α,β-Unsaturated Amides. Stereoselective Functionalization of Carbon-Carbon Triple Bonds
Takai, Kazuhiko,Kataoka, Yasutaka,Yoshizumi, Kazuyuki,Oguchi, Yoshiyuki,Utimoto, Kiitiro
, p. 1479 - 1482 (2007/10/02)
Treatment of alkynes with low-valent tantalum derived from TaCl5 and zinc produces tantalum-alkyne complexes (not isolated), which react with phenylisocyanate (or butylisocyanate) to give (E)-α,β-unsaturated amides stereoselectively.
