A one-pot radical addition/fragmentation route to ketones and esters
作者:Michael G Roepel
DOI:10.1016/s0040-4039(02)00169-7
日期:2002.3
A simple one-pot procedure has been developed that combines carboncarbon bond formation via a radical addition to either substituted enol ethers or ketene acetals, with a subsequent fragmentation reaction to yield ketones and esters. The ‘masked’ methyl carbonyl radical acceptors discovered in this work are either commercially available or easily prepared in one to two steps.
MIDDLETON, DONALD S.;SIMPKINS, NIGEL S., SYNTH. COMMUN., 19,(1989) N-2, C. 21-29
作者:MIDDLETON, DONALD S.、SIMPKINS, NIGEL S.
DOI:——
日期:——
Aromatic Claisen Rearrangements of Benzyl Ketene Acetals: Conversion of Benzylic Alcohols to (
<i>ortho</i>
‐Tolyl)acetates
作者:Jed M. Burns、Elizabeth H. Krenske、Ross P. McGeary
DOI:10.1002/ejoc.201601354
日期:2017.1.10
Claisen rearrangements of benzyl vinyl ethers are much less facile than those of aliphatic allyl vinyl ethers, and their synthetic utility has remained relatively unexplored. A one-pot procedure is reported for the generation and Claisen rearrangement of benzyl vinyl ethers that contain an activating α-alkoxy substituent on the vinyl group. A [3,3]-sigmatropic mechanism was supported by trapping of the