mild catalytic allylation of carbonyl compounds, applicable to aldehydes, ketones, and imines is developed using allyltrimethoxysilane as the allylating reagent. The reaction proceeds smoothly with 1-10 mol % of CuCl and TBAT in THF at ambient temperature. Mechanism studies indicated that the copper alkoxide, allylfluorodimethoxysilane, and allyltrimethoxysilane are essential to promote the reaction
Palladium-Catalyzed sp<sup>2</sup>–sp<sup>3</sup> Coupling of Chloromethylarenes with Allyltrimethoxysilane: Synthesis of Allyl Arenes
作者:Sheng Zhang、Jinfang Cai、Yoshinori Yamamoto、Ming Bao
DOI:10.1021/acs.joc.7b00678
日期:2017.6.2
Palladium-catalyzed remote sp2–sp3 coupling reaction of chloromethylarenes with allyltrimethoxysilane is described in this work. The allylation reaction regioselectively occurred on the para-positions of 1-(chloromethyl)naphthalenes and benzyl chlorides to form new C(sp2)–C(sp3) bonds. The reaction proceeds smoothly under mild conditions to produce allyl arenes in moderate to excellent yields.