title: Studies on the Synthesis of Phytochrome and Related Tetrapyrroles. Dihydropyrromethenones by Photochemical Rearrangement of N-Pyrrolo Enamides.
abstract: 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.
authors.affiliation: Hall-Atwater Laboratories, Wesleyan University, Middletown, Connecticut 06459-0180.
authors.forename: Peter A.
authors.initials: PA
authors.lastname: Jacobi
authors.forename: Subhas C.
authors.initials: SC
authors.lastname: Buddhu
authors.forename: Douglas
authors.initials: D
authors.lastname: Fry
authors.forename: S.
authors.initials: S
authors.lastname: Rajeswari