Synthesis of (4Z)-Unsaturated Iodo-δ-lactones by Catalytic Cross-Cyclomagnesiation

A. A. Makarov, I. V. Ishbulatov,E. Kh. Makarova,V. A. D’yakonov,U. M. Dzhemilev

Russian Journal of Organic Chemistry（2023）

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摘要

6-[(4Z)-1-Iodoalk-4-en-1-yl]tetrahydropyran-2-ones (iodo-δ-lactone analogs) were synthesized for the first time from 5Z,9Z-alka-5,9-dienoic acids in three steps through Cp2TiCl2-catalyzed intermolecular cyclomagnesiation of aliphatic and oxygen-containing 1,2-dienes in the key step.

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关键词

metal complex catalysis,Grignard reagents,cross-cyclomagnesiation,1,2-dienes,iodo-δ-lactones,Cp2TiCl2

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