Journal ArticleDOI
Thermal rearrangement of 4-cyano-2,3-dihydro-5-ethoxy-3-methyl-3-(4-oxo-4H-1- benzopyran-3-yl)furans: a reversed alkoxycarbonylcyclopropane → 5-alkoxy-2,3-dihydrofuran transformation
TLDR
The title dihydrofurans (3f, R1= H, Me, and Cl) as discussed by the authors is derived from the α-cyano-ester (1e) and diazomethane, which thermally rearrange to cyclopropanes (4f) in predominantly Z-isomeric form.Abstract:
The title dihydrofurans (3f, R1= H, Me, and Cl), prepared from the α-cyano-ester (1e) and diazomethane, thermally rearrange to the cyclopropanes (4f) in predominantly Z-isomeric form.read more
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Journal ArticleDOI
Chemistry and application of 4-oxo-4H-1-benzopyran-3-carboxaldehyde
TL;DR: The chemistry and application of the title aldehyde and some simple derivatives thereof are reviewed in this paper, where the authors propose a simple derivative of the aldehydes, which they call simple aldeheeds.
Journal ArticleDOI
Synthesis and Reactivity of Electron-Deficient 3-Vinylchromones
TL;DR: The literature data on the methods of synthesis and reactivity of electron-deficient 3-vinylchromones containing electron-withdrawing groups at the exo-cyclic double bond are summarized and systematized for the first time in this paper.
Journal ArticleDOI
Thermal Rearrangement of 4-Cyano-2,3-dihydro-5-ethoxy-3-methyl-3-(4-oxo-4H-1-benzopyran-3-yl)furans: A Reversed Alkoxycarbonylcyclopropane → 5-Alkoxy-2,3-dihydrofuran Transformation.
TL;DR: The title dihydrofurans (3f, R1= H, Me, and Cl) as discussed by the authors is derived from the α-cyano-ester (1e) and diazomethane, which thermally rearrange to cyclopropanes (4f) in predominantly Z-isomeric form.
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