202057-85-0

Basic information

• Product Name: diethyl 3,7-dimethyl-5-phenyl-1,9-dipyrrylmethanedicarboxylate
• Synonyms: diethyl 3,7-dimethyl-5-phenyl-1,9-dipyrrylmethanedicarboxylate
• CAS NO: 202057-85-0
• Molecular Weight: 394.47
• Mol File: 202057-85-0.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: diethyl 3,7-dimethyl-5-phenyl-1,9-dipyrrylmethanedicarboxylate(CAS DataBase Reference)
• NIST Chemistry Reference: diethyl 3,7-dimethyl-5-phenyl-1,9-dipyrrylmethanedicarboxylate(202057-85-0)
• EPA Substance Registry System: diethyl 3,7-dimethyl-5-phenyl-1,9-dipyrrylmethanedicarboxylate(202057-85-0)

Safety Data

• Hazardous Substances Data: 202057-85-0(Hazardous Substances Data)

Upstream product

• 40611-85-6 4-Methyl-1H-pyrrole-2-carboxylic acid ethyl ester 
• 100-52-7 benzaldehyde 

Downstream Products

• 202057-86-1 C₁₉H₁₈N₂O₄ 
• 202057-87-2 3,3'-dimethyl-5-phenyl-1,2,8,9-tetraiododipyrrylmethane 

Relevant articles and documents

Concerning the Synthesis of 3,7,13,17-Tetramethyl-5,15-diphenylporphyrin, a Sterically Hindered Porphyrin

The synthesis of the sterically hindered porphyrin 1 (3,7,13,17-tetramethyl-5,15-diphenylporphyrin) could only be achieved by first preparing a 5,15-meso substituted octaalkylporphyrin. Thus, the synthesis of a 2,8,12,18-tetrakis(2-hydroxyethyl)-3,7,13,17-tetramethyl-5,15-diphenylporphyrin (12) had to precede the synthesis of 1. The 2-hydroxyethyl side chains were then converted into vinyl residues via the corresponding 2-chloroethyl intermediates. The four vinyl residues (at C2, C8, C12, C18) were cleaved using a resorcinol melt, and the tetra β-unsubstituted porphyrin 1 was then obtained. Porphyrin 1 could not be prepared by direct condensation of benzaldehyde with 3-methylpyrrole nor with a meso-phenyl β-unsubstituted dipyrrylmethane.