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Spiroheterocycles from the Reaction of Arylnitrile Oxides with Some (Z)-3-Arylidene-2(3H)-benzofuranones. New Access to Orthohydroxyphenylisoxazoline Esters.

โœ Scribed by Moheddine Askri; Nafaa Jgham; Mohamed Rammah; Kabula Ciamala; Karin Monnier-Jobe; Joel Vebrel


Publisher
John Wiley and Sons
Year
2007
Weight
21 KB
Volume
38
Category
Article
ISSN
0931-7597

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Spiro[pyrrole-3,2ะˆ-3(2H)-benzofuranones] 7 have been refluxing DMF, the spiro compounds yield tetrasubstituted pyrroles or compounds derived from chromenopyrroles. The synthesized by [4+2] cycloaddition of 2-arylidene-3(2H)benzofuranones with the 2-benzoyl-1,2-dihydroisoquinoline-regio-and stereoche