Tetrahedron Letters p. 4063 - 4066 (1986)
Update date:2022-08-04
Topics:
Guirado, Antonio
Barba, Fructuoso
Hursthouse, Michael B.
Martinez, Antonio
Arcas, Aurelia
The cathodic reduction, under various conditions, of phthalyl chloride enables efficient synthesis of (E)-<1,1'>biisobenzofuranyliden-3,3'-dion(4), (2)-benzopyrano <4,3-c>-<2> benzopyrano-6,12-dione (7), 3-chlorophtalide (8), phtalide (9), or (E)-3<α-(benzoyloxy) benzylidene> phtalide (12); the structure of the latter compound was confirmed by X-ray crystallography.
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(1986)
