The acid-catalysed rearrangement of β-hydroxyalkyl phenyl sulphides leads to phenylthio migration from a tertiary or secondary centre to a primary centre, and, when assisted by silicon, between two secondary centres or even from a secondary to a tertiary centre.
The formation of allyl sulphides by phenylthio-migration: control by silicon
作者:Ian Fleming、Ian Paterson、Andrew Pearce
DOI:10.1039/p19810000256
日期:——
a tertiary migration terminus (4)→(6). Geraniol/nerol (12) and linalool (14) have been synthesised from a common intermediate (11) using this type of reaction. Phenylthio-migration from a tertiary migration origin (17)→(3) can be controlled to a limited extent by a suitably placed silyl group, but it is easier to achieve direct β-elimination of the silyl and phenylthio-groups (17)→(18).