Reaction of 2-Benzoyl-1,2-dihydroisoquinoline-1-carbonitrile Tetrafluoroborate with (Z)-2-Arylidene-3(2H)-benzofuranones – Access to Chromenopyrrole Derivatives

✍ Scribed by Joël Vebrel; Moncef Msaddek; Francis Djapa; Kabula Ciamala; Bernard Laude

• Publisher: John Wiley and Sons
• Year: 1998
• Tongue: English
• Weight: 138 KB
• Volume: 1998
• Category: Article
• ISSN: 1434-193X
• DOI: 10.1002/(sici)1099-0690(199812)1998:12<2855::aid-ejoc2855>3.0.co;2-r

✦ Synopsis

Spiro[pyrrole-3,2Ј-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 stereochemistry of the reaction was established by spectroscopic or X-ray analysis. 1-carbonitrile tetrafluoroborates. In acidic medium or in