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Reactivity of Pyrrole Pigments, VIII. Preparation of 5(2 H )‐Dipyrrylmethanones from 5(1 H )‐Pyrromethenones by Reduction with Sodium Dithionite
Author(s) -
Farrera Joan A.,
Ribó Josep M.,
Serra Xavier,
Trull Francesc R.
Publication year - 1986
Publication title -
liebigs annalen der chemie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.825
H-Index - 155
eISSN - 1099-0690
pISSN - 0170-2041
DOI - 10.1002/jlac.198619860709
Subject(s) - sodium dithionite , chemistry , dithionite , pyrrole , reduction (mathematics) , pigment , reactivity (psychology) , sodium , nuclear chemistry , inorganic chemistry , organic chemistry , enzyme , medicine , geometry , mathematics , alternative medicine , pathology
5(1 H )‐Pyrromethenones 3 have been reduced with sodium dithionite to give 5(2 H )‐dipyrrylmethanones 4 in very good yields. Some of the conditions to optimize this reduction have been studied.