Interception of Criegee intermediate via tandem acetalization and fragmentation reaction provides a novel oxidative decarbonylation of malondialdehyde.
通过串联缩醛化和分解反应拦截Criegee中间体,提供了对丙二醛的新型氧化脱羰基化反应。
Stereoarrays with an All-Carbon Quaternary Center: Diastereoselective Desymmetrization of Prochiral Malonaldehydes
作者:Bruno Linclau、Elena Cini、Catherine S. Oakes、Solen Josse、Mark Light、Victoria Ironmonger
DOI:10.1002/anie.201107370
日期:2012.1.27
The MgBr2 chelation of prochiralmalonaldehydes allows diastereoselective monoaddition reactions with allyl stannane nucleophiles (see scheme; PG=protecting group, TBDMS=tert‐butyldiphenylmethylsilyl, Tr=trityl). In the same pot, addition of a second nucleophile proceeds in high diastereoselectivity to generate nonsymmetric products with up to five contiguous stereogenic centers, including a chiral all‐carbon