ISSN:
1434-193X
Keywords:
[4+2] Cycloaddition
;
Regiochemistry
;
Nitrogen heterocycles
;
Pyrrole
;
Chromenopyrrole
;
Chemistry
;
General Chemistry
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Notes:
Spiro[pyrrole-3,2′-3(2H)-benzofuranones] 7 have been synthesized by [4+2] cycloaddition of 2-arylidene-3(2H)-benzofuranones with the 2-benzoyl-1,2-dihydroisoquinoline-1-carbonitrile tetrafluoroborates. In acidic medium or in refluxing DMF, the spiro compounds yield tetrasubstituted pyrroles or compounds derived from chromenopyrroles. The regio- and stereochemistry of the reaction was established by spectroscopic or X-ray analysis.
Additional Material:
1 Ill.
Type of Medium:
Electronic Resource
Permalink