Monatshefte fur Chemie p. 983 - 992 (1995)
Update date:2022-08-29
Topics:
Chen, Q.-Q.
Ma, J.-S.
Wang, C.-Q.
Liu, Y.-Y.
Yan, F.
et al.
Upon treatment of 9-methyl-10H-dipyrrin-1-ones with bromine in dichloromethane, red bile pigment derivatives were obtained in moderate yields.They were structurally assigned as 1,2-bis-dipyrrinon-9-yl-ethenes, which are examples of the hitherto unknown b-homo-verdins.In addition, the corresponding meso-biliverdins-XIIIα could be isolated from the reaction mixture.The mechanistic aspects of the reaction are discussed. - Keywords: 1,2-bis-Dipyrrinon-9-yl-ethene; b-homo-Verdin; Mesobiliverdin-XIIIα
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