Carbonyl and olefin reactivities for the Baylis–Hillman reaction of fluorocarbonyls
作者:P. Veeraraghavan Ramachandran、M. Venkat Ram Reddy、Michael T. Rudd
DOI:10.1039/b009177b
日期:——
The product formation and yields for the Baylis–Hillman reaction of fluorine-containing carbonyl compounds depend on a balance between the reactivities of the carbonyl and olefin partners.
Study of Fluorocarbonyls for the Baylis−Hillman Reaction
作者:M. Venkat Ram Reddy、Michael T. Rudd、P. Veeraraghavan Ramachandran
DOI:10.1021/jo025591l
日期:2002.7.1
A study of the effect of fluorine substitution in Baylis-Hillman reactions of various fluorocarbonyl partners with acrolein, methyl vinyl ketone, ethyl acrylate, and acrylonitrile has been made.
Aminocatalysis of the Baylis–Hillman reaction: an important solvent effect
作者:Huw J. Davies、Antionio M. Ruda、Nicholas C.O. Tomkinson
DOI:10.1016/j.tetlet.2006.12.072
日期:2007.2
Examination of the aminocatalytic Baylis-Hillman reaction in the presence of proline and imidazole has revealed that water plays a crucial role in the acceleration of the reaction, allowing for excellent yields of the adduct between methyl vinyl ketone and a variety of aldehydes. (c) 2006 Elsevier Ltd. All rights reserved.
Proline-Mediated Baylis–Hillman Reaction of Methyl Vinyl Ketone without a Co-catalyst under Solvent-Free Conditions
作者:Srinivasan Easwar、Heena Inani、Ajit Jha
DOI:10.1055/s-0036-1588320
日期:——
A proline-mediated Baylis–Hillmanreaction of methyl vinyl ketone with aromatic aldehydes has been carried out without using any co-catalyst, under solvent-free conditions. The reaction works efficiently at 60 °C in the presence of a small amount of water to afford the Baylis–Hillman adducts in reasonable to very good yields over 8–48 h. The absence of a co-catalyst suggests that proline plays a role
脯氨酸介导的甲基乙烯基酮与芳香醛的 Baylis-Hillman 反应已在无溶剂条件下进行,无需使用任何助催化剂。该反应在 60 °C 下在少量水存在下有效进行,以在 8-48 小时内以合理到非常好的产率提供 Baylis-Hillman 加合物。没有助催化剂表明脯氨酸除了参与亚胺离子形成和共轭加成外,还在反应机制的质子转移步骤中发挥作用。原则上,这意味着脯氨酸在反应中充当三功能催化剂,而对这方面更深入了解的机理研究应该会在未来提供进一步的见解。