A Convenient and Improved Baylis-Hillman Synthesis of 3-Substituted 2<i>H</i>-1-benzopyran-2-ones
作者:Perry T. Kaye、Musiliyu A. Musa
DOI:10.1055/s-2002-35984
日期:——
Halogen acid-catalysed deprotection and cyclisation of Baylis-Hillman products obtained using O-benzylated salicylaldehyde precursors has been shown to afford 3-(halomethyl)coumarins (3-halomethyl-2H-1-benzopyran-2-ones) chemoselectively and in good yield.
Application of Baylis–Hillman Methodology in the Synthesis of Coumarin Derivatives
作者:Perry T. Kaye、M. A. Musa
DOI:10.1081/scc-120018937
日期:2003.1.6
Abstract A general, chemoselective approach to 3-substituted coumarins via Baylis–Hillman reactions of O-benzylated salicylaldehyde precursors has been demonstrated. Competitive cyclization to chromene derivatives is inhibited by conjugate addition of benzylamine or piperidine to the α,β-unsaturated ester intermediates.
Synthesis and evaluation of 3-hydroxy-3-phenylpropanoate ester–AZT conjugates as potential dual-action HIV-1 Integrase and Reverse Transcriptase inhibitors
作者:Meloddy H. Manyeruke、Temitope O. Olomola、Swarup Majumder、Shaakira Abrahams、Michelle Isaacs、Nicodemus Mautsa、Salerwe Mosebi、Dumisani Mnkandhla、Raymond Hewer、Heinrich C. Hoppe、Rosalyn Klein、Perry T. Kaye
DOI:10.1016/j.bmc.2015.10.039
日期:2015.12
Novel 3-hydroxy-3-phenylpropanoate ester–azidothymidine (AZT) conjugates have been prepared using Baylis–Hillman methodology, and their potential as dual-action HIV-1 Integrase and ReverseTranscriptaseinhibitors has been explored using enzyme inhibition and computer modelling techniques; their activity and HeLa cell toxicity have been compared with those of their cinnamate ester analogues.
Application of the acetate of baylis-hillman adducts of salicylaldehydes in the synthesis of methyl 2-oxo-2,3-dihydrobenzo[<i>b</i>]oxepine-4-carboxylates
作者:Sang-Hyun Ahn、Hee Nam Lim、Kee-Jung Lee
DOI:10.1002/jhet.5570450622
日期:2008.11
A simple synthesis of several methyl2-oxo-2,3-dihydrobenzo[b]oxepine-4-carboxylates from Baylis-Hillmanadducts of O-benzyl protected 2-hydroxybenzadehydes has been described through the acetylation, cyanation, debenzylation, as well as acid assisted Pinner cyclization.
已经描述了通过乙酰化,氰化,脱苄基以及O-苄基保护的2-羟基苯甲醛的Baylis-Hillman加合物简单合成几种2-oxo-2,3-dihydrobenzo [ b ] oxepine-4-羧酸甲酯的方法。酸辅助的Pinner环化。
Evaluation of Baylis–Hillman Routes to 3-(Aminomethyl)coumarin Derivatives
作者:Idris Olasupo、Nathan R. Rose、Rosalyn Klein、Luqman A. Adams、Oluwole B. Familoni、Perry T. Kaye
DOI:10.1080/00397911.2013.803575
日期:2014.1.17
The relative merits of two different Baylis-Hillman approaches toward the preparation of coumarin derivatives, containing peptide-like side chains, have been explored. In one approach, use of methyl acrylate as the activated alkene requires a protecting group strategy, an approach that is not necessary when using tert-butyl acrylate. [Supplementary materials are available for this article. Go to the publisher's online edition of Synthetic Communications (R) for the following free supplemental resource(s): Full experimental and spectral details.]