ChemInform Abstract: Preparation of Tributylstannylmanganate and Its Addition to Propargylic Alcohols with High Regio- and Stereoselectivities.

✍ Scribed by Shinichi Usugi; Jun Tang; Hiroshi Shinokubo; Koichiro Oshima

• Publisher: John Wiley and Sons
• Year: 2010
• Weight: 30 KB
• Volume: 30
• Category: Article
• ISSN: 0931-7597
• DOI: 10.1002/chin.199949160

✦ Synopsis

Preparation of Tributylstannylmanganate and Its Addition to Propargylic Alcohols with High Regio-and Stereoselectivities. -Reaction of 4 equiv. MeLi with MnCl 2 generates Me 4 MnLi 2 which adds to R 3 Sn-SnR 3 to give a solution of stannylmanganates in almost quantitative yield. These reagents [cf. (II)] selectively deliver the R 3 Sn moiety to a variety of organic substrates. -(USUGI, SHINICHI;