Iridium-Catalyzed Coupling Reaction of Primary Alcohols with 1-Aryl-1-propynes Leading to Secondary Homoallylic Alcohols
作者:Yasushi Obora、Shintaro Hatanaka、Yasutaka Ishii
DOI:10.1021/ol901366q
日期:2009.8.6
We report iridium-catalyzedcoupling of 2-alkynes such as 1-aryl-1-propynes with primaryalcoholsleading to secondary homoallylic alcohols as products. This reaction involves an iridium-catalyzed novel catalytic transformation of 2-alkynes and primaryalcohols through the formation of hydrido(π-allyl)iridium as a possible key intermediate.
Nickel-Catalyzed Reductive Allylation of Aldehydes with Allylic Alcohols in the Presence of CO<sub>2</sub>
作者:Zeyu Zhang、Jiayuan Li、Chanjuan Xi
DOI:10.1021/acs.orglett.3c03528
日期:2023.11.17
CO2-assisted and Ni-catalyzed direct reductive allylation of aldehydes utilizing allylicalcohols as allylic precursor has been reported. Various homoallyl alcohols could be synthesized in excellent yield with enhanced regioselectivity and stereoselectivity for alkyl- and aryl-substituted aldehydes under mild conditions. For different substrates, proper collocation of the catalytic precursor and ligand
Photoredox/Nickel Dual-Catalyzed Allylation of Aldehydes with Allylic Alcohols and Mechanistic Insights in the Presence of CO2
作者:Zeyu Zhang、Zongchang Han、Jiayuan Li、Han-Shi Hu、Jun Li、Chanjuan Xi
DOI:10.1021/acscatal.4c03991
日期:2024.8.16
Direct utilization of allylic alcohols as allylic reagents without metal reductants has drawn significant attention. Herein, we report a practical, diastereoselective photoredox/Ni(II)-dual-catalyzed reductive allylation reaction of aldehydes with readily accessible allylic alcohols in the presence of CO2. This methodology allows the branched regioselective direct allylation of a wide range of aldehydes