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Copper‐Catalyzed Bora‐Acylation and Bora‐Alkoxyoxalylation of Allenes
Author(s) -
Sawada Ayumi,
Fujihara Tetsuaki,
Tsuji Yasushi
Publication year - 2018
Publication title -
advanced synthesis and catalysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.541
H-Index - 155
eISSN - 1615-4169
pISSN - 1615-4150
DOI - 10.1002/adsc.201800311
Subject(s) - chemistry , allene , acylation , catalysis , boron , copper , organoboron compounds , organic chemistry
Bora‐acylation of allenes proceeds in the presence of a copper catalyst using B 2 (pin) 2 and carboxylic anhydrides as boron and acyl sources, respectively. The reaction selectively affords the corresponding β ‐boryl‐ β,γ ‐unsaturated ketones in good‐to‐high yields. Bora‐alkoxyoxalylation of an allene is also achieved using oxalates.