Hindered organoboron groups in organic chemistry. 28 The solvolyses of bis(2,6-dimethyl-4-methoxyphenyl)organylboranes, (DMP)2BR
作者:Andrew Pelter、Robert Drake
DOI:10.1016/s0040-4020(01)85690-8
日期:1994.1
Mineral acid catalysed methanolysis of bis (2,6-dimethyl-4-methoxyphenyl)organylboranes(DMP)(2)BR, (1), is much faster than that of the corresponding dimesitylorganylboranes, Mes(2)BR. This allows for the release of organyl groups from 'overhindered' boranes. It also provides a link between (DMP)(2)BR, from which alpha-carbanions can be produced, and RB(OMe)(2) which do not yield a-carbanions. Solvolyses can be enhanced by the use of glycol, which renders even acetic acid on effective solvolysis catalyst.