Synthesis of oxygen-containing heterocyclic compounds based on the intramolecular O–H insertion and Wolff rearrangement of α-diazocarbonyl compounds
作者:Mingyi Liao、Suwei Dong、Guisheng Deng、Jianbo Wang
DOI:10.1016/j.tetlet.2006.05.007
日期:2006.7
from β-keto α-diazo carbonyl compound to ketones or α,β-unsaturated compounds were subjected to Rh2(OAc)4-catalyzed and photo-induced diazo decomposition. The Rh2(OAc)4-catalyzed reaction afforded intramolecular O–H insertion products, while the photo-induced reaction gave Wolff rearrangement/intramolecular nucleophilic addition products. The transformations represent new approaches to tetrahydrofuran
将由β-酮α-重氮羰基化合物衍生的钛(IV)-烯酸酯与酮或α,β-不饱和化合物的加成产物进行Rh 2(OAc)4催化和光诱导的重氮分解。Rh 2(OAc)4催化的反应提供了分子内O–H插入产物,而光诱导的反应产生了Wolff重排/分子内亲核加成产物。该转化代表了四氢呋喃和γ-丁内酯衍生物的新方法。