Tetrapyrroles. III. Homochiral dihydropyrromethenones from N-Aminopyrroles and acetylenic acids
作者:Peter A. Jacobi、S. Rajeswari
DOI:10.1016/s0040-4039(00)60940-1
日期:1992.10
Dihydropyrromethenone 29, a potential precursor for the synthesis of Phytochrome (8), Phycocyanin (9)and Phycoerythrin (10), has been prepared in homochiral form from pyrrolohydrazide 27 by a sequence involving F- induced 5-exo-dig cyclization to afford enamide 28, followed by photochemical 3,5-sigmatropic rearrangement.
JACOBI, PETER A.;BUDDHU, SUBHAS C., TETRAHEDRON LETT., 29,(1988) N 38, C. 4823-4826
作者:JACOBI, PETER A.、BUDDHU, SUBHAS C.
DOI:——
日期:——
Studies on the Synthesis of Phytochrome and Related Tetrapyrroles. Dihydropyrromethenones by Photochemical Rearrangement of <i>N</i>-Pyrrolo Enamides
作者:Peter A. Jacobi、Subhas C. Buddhu、Douglas Fry、S. Rajeswari
DOI:10.1021/jo970288j
日期:1997.5.1
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.