Tetrahedron

Tandem annulation strategy for the convergent synthesis of benzonaphthopyranones: total synthesis of chartarin and O-methylhayumicinone

S Ray, A Patra, D Mal

文献索引：Ray, Sutapa; Patra, Asit; Mal, Dipakranjan Tetrahedron, 2008 , vol. 64, # 14 p. 3253 - 3267

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被引用次数: 12

摘要

A Hauser-initiated tandem annulation has been developed for the rapid regiospecific synthesis of benzonaphthopyranones via formation of two rings in one-pot operation. This strategy has been generalized with benzonaphthopyranones 26, 29, 32, and 35. It has also been employed in a short synthesis of chartarin (3) and O-methylhayumicinone (67).