54605-86-6Relevant articles and documents
A Conceptually New Approach to the Synthesis of Linear Tetrapyrroles Related to Phytochrome
Jacobi, Peter A.,Guo, Jiasheng
, p. 2717 - 2720 (1995)
Linear tetrapyrroles 9, of a type related to phytochrome (3), have been prepared by TBAF catalyzed 5-exo-dig cyclization of bis-acetylenic amides 8.
Syntheses of type-I porphyrins via monopyrrole tetramerization
Nguyen, Liem T.,Smith, Kevin M.
, p. 7177 - 7180 (2007/10/03)
Treatment of 2-[(N,N-dialkylamino)methyl]pyrrole-5-carboxylic acids (e.g. 10,12 or 11,13) in methanol with K3Fe(CN)6 gives type-I porphyrins (etioporphyrin-I 7, coproporphyrin-I tetramethyl ester 16, respectively); with pyrroles 10,12 the product 7 is contaminated with about 8% of other type-isomer(s).