A facile synthesis of alkylidenebutenolides via thermal rearrangement of benzisoxazolequinones

DOI: 10.1016/S0040-4039(00)93566-4

Source and publish data:

Tetrahedron Letters p. 5825 - 5828 (1991)

Update date:2022-08-04

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Authors:

Torres, Tomas

Schaefer, Wolfram

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Article abstract of DOI:10.1016/S0040-4039(00)93566-4

Benzisoxazolequinones 1 readily accesible from 2-carboxy-1,4-hydroquinone undergo thermic induced highly stereoselective rearrangement in solution to produce quantitatively γ-cyanomethylidenebutenolides 2.

Full text of DOI:10.1016/S0040-4039(00)93566-4

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Product name:1-Methyl-5-(p-toluidino)<2,1>benzisoxazole-3(1H)-one-4,7-quinone

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