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Synthesis of allenes via thermal cycloreversion of .alpha.-alkylidene-.beta.-lactones
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This article has been cited by 6 ACS Journal articles (5 most recent appear below).
Studies on Pd(II)-Catalyzed Synthesis of (Z)-α-Haloalkylidene-β-lactones from Cyclocarbonylation of 2-Alkynols and the Subsequent Coupling Reactions
Shengming Ma, Bin Wu, Xuefeng Jiang, and Shimin ZhaoThe Journal of Organic Chemistry2005 70 (7), 2568-2575Studies on Pd(II)-Catalyzed Synthesis of (Z)-α-Haloalkylidene-β-lactones from Cyclocarbonylation of 2-Alkynols and the Subsequent Coupling Reactions
Shengming Ma, Bin Wu, Xuefeng Jiang, and Shimin ZhaoThe Journal of Organic Chemistry2005 70 (7), 2568-2575A good regio- and stereoselectivity was observed for the PdCl2-catalyzed cyclocarbonylation of 2-alkynols with CuCl2 affording (Z)--chloroalkylidene--lactones. The highly optically active (Z)--chloroalkylidene--lactones could be easily prepared from ...
Mild and Efficient Synthesis of (Z)-α-Chloroalkylidene-β-lactones via the PdCl2-Catalyzed Cyclocarbonylation of 2-Alkynols
Shengming Ma, Bin Wu, and Shimin ZhaoOrganic Letters2003 5 (23), 4429-4432Mild and Efficient Synthesis of (Z)-α-Chloroalkylidene-β-lactones via the PdCl2-Catalyzed Cyclocarbonylation of 2-Alkynols
Shengming Ma, Bin Wu, and Shimin ZhaoOrganic Letters2003 5 (23), 4429-4432A mild and efficient methodology involving PdCl2-catalyzed cyclocarbonylation of 2-alkynols with CuCl2 for the synthesis of (Z)--chloroalkylidene--lactones was developed. Using the readily available optically active propargylic alcohols allows ...
Unusual, Strained Heterocycles: 3-Alkylidene-2-methyleneoxetanes from Morita−Baylis−Hillman-type Adducts
Isamir Martínez, Alexander E. Andrews, Joseph D. Emch, Albert J. Ndakala, Jun Wang, and Amy R. HowellOrganic Letters2003 5 (4), 399-402Unusual, Strained Heterocycles: 3-Alkylidene-2-methyleneoxetanes from Morita−Baylis−Hillman-type Adducts
Isamir Martínez, Alexander E. Andrews, Joseph D. Emch, Albert J. Ndakala, Jun Wang, and Amy R. HowellOrganic Letters2003 5 (4), 399-4023-Alkylidene-2-methyleneoxetanes have been prepared by treating -alkylidene--lactones, derived from MoritaBaylisHillman-type adducts, with dimethyltitanocene. Preliminary studies of the reactivity of these little known, strained heterocycles are also ...
Total Synthesis of O-Methylsterigmatocystin Using N-Alkylnitrilium Salts and Carbonyl−Alkene Interconversion in a New Xanthone Synthesis
Linda K. Casillas and Craig A. TownsendThe Journal of Organic Chemistry1999 64 (11), 4050-4059Total Synthesis of O-Methylsterigmatocystin Using N-Alkylnitrilium Salts and Carbonyl−Alkene Interconversion in a New Xanthone Synthesis
Linda K. Casillas and Craig A. TownsendThe Journal of Organic Chemistry1999 64 (11), 4050-4059A general strategy is described for the preparation of substituted xanthones and embodied in the preparation of ()-O-methylsterigmatocystin (OMST), the most advanced, known intermediate in the biosynthesis of aflatoxin. The essential features of this ...
Structural and Solvent Effects on the Mechanism of the Thermal Decarboxylation of 2-Oxetanones. A Limiting Case between Concerted and Stepwise Pathways in Pericyclic Reactions
Iñaki Morao, Begoña Lecea, Ana Arrieta, and Fernando P. CossíoJournal of the American Chemical Society1997 119 (4), 816-825Structural and Solvent Effects on the Mechanism of the Thermal Decarboxylation of 2-Oxetanones. A Limiting Case between Concerted and Stepwise Pathways in Pericyclic Reactions
Iñaki Morao, Begoña Lecea, Ana Arrieta, and Fernando P. CossíoJournal of the American Chemical Society1997 119 (4), 816-825The thermal decarboxylation of 2-oxetanones (-lactones) to yield alkenes has been studied using ab initio SCF-MO computational methods. Solvent effects have also been taken into account. The reaction is predicted to be concerted in the gas phase, the ...
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- Published In Issue January, 1993
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