Literature DB >> 28926273

Palladium-Catalyzed Cyclization of Alkynoic Acids To Form Vinyl Dioxanones Bearing a Quaternary Allylic Carbon.

Yohei Ogiwara1, Kazuya Sato1, Norio Sakai1.   

Abstract

A palladium-catalyzed intramolecular reaction of carboxylic acids and alkynes in a novel cyclization manner was developed. This unique cyclization efficiently provided a wide range of complex ring systems-vinyl dioxanones bearing a quaternary allylic carbon. Mechanistic studies suggest an allenyl carboxylate as an intermediate.

Entities:  

Year:  2017        PMID: 28926273     DOI: 10.1021/acs.orglett.7b02572

Source DB:  PubMed          Journal:  Org Lett        ISSN: 1523-7052            Impact factor:   6.005


  1 in total

1.  Organocatalytic sulfa-Michael/aldol cascade: constructing functionalized 2,5-dihydrothiophenes bearing a quaternary carbon stereocenter.

Authors:  Xiao-Yu Zhu; Mei-Heng Lv; Ya-Nan Zhao; Li-Yan Lan; Wen-Ze Li; Lin-Jiu Xiao
Journal:  RSC Adv       Date:  2018-10-03       Impact factor: 4.036

  1 in total

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