148628-70-0Relevant articles and documents
Stereoselective synthesis of functionalized butenolides by the photochemical rearrangement of [2,1]benzisoxazolequinone derivatives
Armesto, Diego,Rodriguez-Morgade, Salome,Ortiz, Maria J.,Vazquez, Purificacion,Torres, Tomas
, p. 3363 - 3368 (1997)
On direct irradiation 3-alkoxy[2,1]benzisoxazolequinones 1a, 1b, 1c, 1e and 3-N,N-dimethylamino[2.1]benzisoxazolequinone 1d undergo rearrangement to the corresponding γ-cyano alkylidenebutenolides 3 in high yield. The reaction is highly stereoselective fo
Thermal Rearrangement of Benzisoxazole- and Naphthisoxazolequinones in Solution and in the Solid State. Stereoselective Synthesis of γ-Cyanomethylidenebutenolides.
Martinez-Diaz, M. Victoria,Rodriguez-Morgade, Salome,Schaefer, Wolfram,Torres, Tomas
, p. 2261 - 2274 (2007/10/02)
Readily accessible benzisoxazolequinones 1 undergo thermal induced highly stereoselective rearrangement in solution to afford quantitatively γ-cyanomethylidenebutenolides 3.The transformation can be explained by the formation of a vinylogous nitrene inter
A facile synthesis of alkylidenebutenolides via thermal rearrangement of benzisoxazolequinones
Torres, Tomas,Schaefer, Wolfram
, p. 5825 - 5828 (2007/10/02)
Benzisoxazolequinones 1 readily accesible from 2-carboxy-1,4-hydroquinone undergo thermic induced highly stereoselective rearrangement in solution to produce quantitatively γ-cyanomethylidenebutenolides 2.