Studies on the synthesis of phytochrome and related tetrapyrroles. Dihydropyrromethenones by photochemical rearrangement of N-pyrrolo enamides

…, SC Buddhu, D Fry, S Rajeswari

文献索引：Jacobi, Peter A.; Buddhu, Subhas C.; Fry, Douglas; Rajeswari Journal of Organic Chemistry, 1997 , vol. 62, # 9 p. 2894 - 2906

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被引用次数: 37

摘要

Dihydropyrromethenone 67b, a potential precursor for the synthesis of phytochrome 1, has been prepared in enantiomerically pure form beginning with N-aminopyrrole 64 and the acetylenic acid 62b. The key step involved a 3, 5-sigmatropic rearrangement of N-pyrrolo enamide 66b.