A novel synthesis of pyrromethenones
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Peter A. Jacobi; Subhas C. Buddhu
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Article
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1988
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Elsevier Science
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French
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## Pyrromethenones are prepared by a process involving acylation of an N-aminopyrrole with a suitable acetylenic acid, followed by sequential S-exo-dig cyclization and 3J-sigmatropic shifr. Phytochrome (la) is a member of the biliprotein family of chromophores, which are made up of linear tetrapyr