A Cooperative Catalysis Approach to the Morita-Baylis-Hillman Reaction of Aryl Vinyl Ketones
作者:Kyungsoo Oh、Jian-Yuan Li
DOI:10.1055/s-0030-1260468
日期:2011.6
achieved for the first time through cooperative catalysis of proline and brucine N-oxide. A unique mode of activation of the aldehydes through proline iminium intermediates has been identified as a key reaction parameter for the successful MBH reaction of aryl vinyl ketones. The reaction pathways leading to 1:2 MBH products under typical nucleophiliccatalysis conditions were investigated. A systematic
A Practical Synthesis of Morita-Baylis-Hillman Adducts of Aryl Vinyl Ketones Catalyzed by a Proton Donor
作者:Sung-Hwan Kim、Se-Hee Kim、Cheol-Hee Lim、Jae-Nyoung Kim
DOI:10.5012/bkcs.2012.33.6.2023
日期:2012.6.20
E-mail: kimjn@chonnam.ac.krReceived March 15, 2012, Accepted March 24, 2012An efficient and practical synthesis of MBH adducts of aryl vinyl ketones was developed using DABCO and4-nitrophenol as a proton donor. Addition of a proton donor and the use of excess amounts (3.0 equiv) ofaldehydes were highly beneficial for the yields of MBH adducts of aryl vinyl ketones. Key Words : Morita-Baylis-Hillman