Formation of vinylic dipyrroles by the deprotonation of meso-alkyl and meso-benzyl dipyrrin HCl salts.
Under basic conditions, dipyrrin salts bearing alkyl and benzyl groups at the meso-position undergo deprotonation to give vinylic dipyrroles, rather than the corresponding free-base dipyrrins. The deprotonation is reversible and quantitatively returns the dipyrrinato framework under acidic conditions.
Al-Sheikh Ali
Adeeb
A
Department of Chemistry, Dalhousie University, Halifax, Nova Scotia, B3H 4J3, Canada.
Cipot-Wechsler
Judy
J
Cameron
T Stanley
TS
Thompson
Alison
A