114155-54-3

Basic information

• Product Name: 1-bromo-3,13-diethyl-8,18-bis(2-(methoxycarbonyl)ethyl)-2,7,12,17,19-pentamethyl-5,15-biladienium dibromide
• CAS NO: 114155-54-3
• Molecular Weight: 839.506
• Mol File: 114155-54-3.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: 1-bromo-3,13-diethyl-8,18-bis(2-(methoxycarbonyl)ethyl)-2,7,12,17,19-pentamethyl-5,15-biladienium dibromide(CAS DataBase Reference)
• NIST Chemistry Reference: 1-bromo-3,13-diethyl-8,18-bis(2-(methoxycarbonyl)ethyl)-2,7,12,17,19-pentamethyl-5,15-biladienium dibromide(114155-54-3)
• EPA Substance Registry System: 1-bromo-3,13-diethyl-8,18-bis(2-(methoxycarbonyl)ethyl)-2,7,12,17,19-pentamethyl-5,15-biladienium dibromide(114155-54-3)

Safety Data

• Hazardous Substances Data: 114155-54-3(Hazardous Substances Data)

Upstream product

• 114132-57-9 3'-ethyl-4-(2-(methoxycarbonyl)ethyl)-3,4',5-trimethyl-2,2'-dipyrromethenium bromide 
• 54474-50-9 2,4-dimethyl-3-pyrrolepropanoic acid 
• 114132-58-0 5'-bromo-5-(bromomethyl)-3'-ethyl-4-(2-(methoxycarbonyl)ethyl)-3,4'-dimethyl-2,2'-dipyrromethenium bromide 
• 20303-31-5 benzyl 4-(2-methoxycarbonylethyl)-3,5-dimethylpyrrole-2-carboxylate 
• 32928-30-6 3-ethyl-2-formyl-4-methylpyrrole 
• 2386-37-0 ethyl 3,5-dimethyl-4-(2-methoxycarbonyl-ethyl)pyrrole-2-carboxylate 

Relevant articles and documents

Bromination of Dipyrromethenes for Porphyrin Synthesis

5'-Bromo-5-(bromomethyl)-2,2'-dipyrromethenium bromides (1) and dimers were prepared in 90percent yield from 5'-unsubstituted (16), 5'-carboxy- (15),or 5'-bromo-5-methyl-2,2'-dipyrromethenium bromides (17) by treatment of the latter with bromine and trifluoroacetic acid in chlorocarbon solvents at room temperature.Dipyrromethenes (1) are important intermediates in the Johnson regioselective synthesis of porphyrins via biladienes (3).Improvements in porphyrin synthetic methodology are exemplified by the preparation of etioporphyrin III (4a) and mesoporphyrin II dimethyl ester (4b)