Iridium‐Catalyzed C5‐Regioselective Esterification of Dienyl Alcohols with Carboxylic Acids
作者:Jiadong Chen、Yulu Zhang、Shengbiao Tang、Ying Shao、Jiangtao Sun
DOI:10.1002/ejoc.202300605
日期:2023.8.21
Here reported a C5-regioselective esterification of unactivated dienyl alcohols using free carboxylicacids as nucleophiles under mild conditions. The process provided a series of 1,3-dienyl-5-ester compounds in excellent regioselectivity and E-selectivity.
Traceless Rhodium-Catalyzed Hydroacylation Using Alkyl Aldehydes: The Enantioselective Synthesis of β-Aryl Ketones
作者:Anaïs Bouisseau、Ming Gao、Michael C. Willis
DOI:10.1002/chem.201604035
日期:2016.10.24
A one‐pot three‐step sequence involving Rh‐catalyzed alkene hydroacylation, sulfide elimination and Rh‐catalyzed aryl boronic acid conjugate addition gave products of traceless chelation‐controlled hydroacylation employing alkyl aldehydes. The stereodefined β‐aryl ketones were obtained in good yields with excellent control of enantioselectivity. Good variation of all three reaction components is possible