Palladium-Catalyzed Decarboxylative γ-Olefination of 2,5-Cyclohexadiene-1-carboxylic Acid Derivatives with Vinyl Halides
作者:Chi-Hao Chang、Chih-Ming Chou
DOI:10.1021/acs.orglett.8b00486
日期:2018.4.6
This study explores a Pd-catalyzed decarboxylative Heck-type Csp3–Csp2 coupling reaction of 2,5-cyclohexadiene-1-carboxylic acid derivatives with vinylhalides to provide γ-olefination products. The olefinated 1,3-cyclohexadienes can be further oxidized to produce meta-alkylated stilbene derivatives. Additionally, the conjugated diene products can also undergo a Diels–Alder reaction to produce a bicyclo[2
Functionalized Allyl Aryl Ether Synthesis from Benzoic Acids Using a Dearomatization and Decarboxylative Allylation Approach
作者:Cheng-En Hsieh、Yu-Min Jiang、Chih-Ming Chou
DOI:10.1021/acs.joc.8b02487
日期:2019.1.18
toward the preparation of substituted allyl arylethers from benzoic acids via a dearomatization and decarboxylative allylation (DcA) reaction is presented. The benzoic acids undergo a dearomatization to give alkylated 2,5-cyclohexadienyl ketoesters which are subjected to a palladium-catalyzed DcA reaction, providing a variety of functionalized allyl arylethers. In addition, the combination of a resonance