Imino 1,2-Wittig rearrangement of hydroximates and its application to synthesis of cytoxazone
摘要:
The imino 1,2-Wittig rearrangement of hydroximates provides a novel method for the construction of 2-hydroxyoxime ethers. Upon treatment with LDA, Z-hydroximates smoothly underwent stereoselective rearrangement to give Z-2-hydroxyoxime ethers in good yield, which were converted into amino alcohols. On the other hand, the rearrangement of E-hydroximates gave a mixture of E- and Z-2-hydroxyoxime ethers. This method was successfully applied to a practical synthesis of cytoxazone. (C) 2004 Elsevier Ltd. All rights reserved.
A Concise Synthesis of (-)-Cytoxazone and its Stereoisomers via Imino 1,2-Wittig Rearrangement
作者:Okiko Miyata、Hiroshi Asai、Takeaki Naito
DOI:10.1055/s-1999-2992
日期:1999.12
A concise synthesis of (-)-cytoxazone (1) and its stereoisomers has been achieved via the route involving the imino 1,2-Wittig rearrangement of hydroximate.