Cobalt-Catalyzed Intermolecular [2+2] Cycloaddition between Alkynes and Allenes

研究成果: ジャーナルへの寄稿学術論文査読

31 被引用数 (Scopus)

抄録

An intermolecular [2+2] cycloaddition reaction between an alkyne and an allene is reported. In the presence of a cobalt(I)/diphosphine catalyst, a near equimolar mixture of the alkyne and allene is converted into a 3-alkylidenecyclobutene derivative in good yield with high regioselectivity. The reaction tolerates a variety of internal alkynes and mono- or disubstituted allenes bearing various functional groups. The reaction is proposed to involve regioselective oxidative cyclization of the alkyne and allene to form a 4-alkylidenecobaltacyclopentene intermediate, with subsequent C−C reductive elimination.

本文言語英語
ページ(範囲)2500-2504
ページ数5
ジャーナルAngewandte Chemie - International Edition
58
8
DOI
出版ステータス出版済み - 2019 2月 18

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