Regio‐ and Stereoselective Synthesis of Fully Substituted Silyl Enol Ethers of Ketones and Aldehydes in Acyclic Systems
作者:Peter‐Yong Wang、Guillaume Duret、Ilan Marek
DOI:10.1002/anie.201909089
日期:2019.10.14
The regio- and stereoselective preparation of fully substituted and stereodefined silylenolethers of ketones and aldehydes through an allyl-Brook rearrangement is reported. This fast and efficient method proceeds from a mixture of E and Z isomers of easily accessible starting materials.
Stereoselective Sc(OTf)
<sub>3</sub>
‐Catalyzed Aldol Reactions of Disubstituted Silyl Enol Ethers of Aldehydes with Acetals
作者:Peter‐Yong Wang、Itai Massad、Ilan Marek
DOI:10.1002/anie.202101634
日期:2021.6
access to stereodefined disubstituted aldehyde-derived silyl enol ethers allowed their successful application in a stereoselective aldol reaction affording the products with excellent yields and diastereomeric ratios. The counter-intuitive stereochemical behavior of this Mukaiyama-aldol reaction is accounted for by a non-classical open transition state.