Regioselectivity of Reactions of Nitrogen and Carbon Nucleophiles with Coumarin Derivatives
作者:Perry T. Kaye、Musiliyu A. Musa
DOI:10.1081/scc-200030643
日期:2004.1.1
Abstract Reaction of various 3‐substituted coumarins with nitrogen and carbon nucleophiles appears to involve, in all cases examined, exclusive, direct substitution at the exocyclic C‐1′ electrophilic center.
Efficient and Chemoselective Access to 3-(Chloromethyl)coumarins via Direct Cyclisation of Unprotected Baylis-Hillman Adducts
作者:Perry T. Kaye、Musiliyu A. Musa、Xolani W. Nocanda
DOI:10.1055/s-2003-37655
日期:——
Reaction of substituted 2-hydroxybenzaldehydes with t-butyl acrylate in the presence of DABCO has been shown to afford isolable Baylis-Hillman adducts, acid-catalysed cyclisation of which affords the corresponding 3-(chloromethyl)coumarins directly and in high yield.
Rashamuse, Thompo J.; Musa, Musiliyu A.; Klein, Rosalyn, Journal of Chemical Research, 2009, # 5, p. 302 - 305
作者:Rashamuse, Thompo J.、Musa, Musiliyu A.、Klein, Rosalyn、Kaye, Perry T.
DOI:——
日期:——
Novel Heterocyclic Analogues of the HIV‐1 Protease Inhibitor, Ritonavir
作者:Perry T. Kaye、Musiliyu A. Musa、Aloysius T. Nchinda、Xolani W. Nocanda
DOI:10.1081/scc-200025617
日期:2004.1.1
Abstract Hydroxyethylene dipeptide isosteres containing chromone, coumarin, chromene, and thiochromene moieties have been prepared as novel analogues of the human immunodeficiency virus (HIV)‐1 proteaseinhibitor, ritonavir.
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.