Synthesis of polyacenequinones a benzo[2,3-c]furan
1987; Elsevier BV; Volume: 43; Issue: 16 Linguagem: Inglês
10.1016/s0040-4020(01)86855-1
ISSN1464-5416
AutoresW. C. Christopfel, Larry L. Miller,
Tópico(s)Synthesis of Organic Compounds
Resumo1,3-Bis(4-tert-butylphenyl)-4.7-diacetoxybenzo- (2,3-c)furan (3c) serves as a masked-dienophile/diene equivalent, which can elongate a 1,4-quinone by two rings. Elongation Involves a three step sequence of Diels-Alder reaction, dehydrative-aromatization. and oxidative unmasking of the dienophile. This elongation strategy has been used to sequentially convert napthoquinone to a tetracenetetrone and a hexacenetetrone.
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