354815-01-3

Upstream product

• 242127-10-2 3-(2-allyloxycarbonyl-ethyl)-4-methyl-5-[3-methyl-5-oxo-4-(2-p-tolylsulfanyl-ethyl)-1,5-dihydro-pyrrol-2-ylidenemethyl]-1H-pyrrole-2-carboxylic acid tert-butyl ester 
• 242127-08-8 2-bromo-4-methyl-5-(toluene-4-sulfonyl)-3-(2-p-tolylsulfanyl-ethyl)-1H-pyrrole 
• 242127-09-9 1,5-dihydro-4-methyl-3-[2-(tolylthio)ethyl]-5-tosyl-2H-pyrrol-2-one 
• 208753-55-3 t-butyl 3-(3-allyloxy-3-oxopropyl)-5-formyl-4-methyl-1H-pyrrole-2-carboxylate 

Relevant academic research and scientific papers

An efficient method for the conversion of 2-bromo-5-tosylpyrroles to the corresponding 5-tosylpyrrolinones as the D-ring of phycocyanobilin derivatives

2-Bromo-5-tosylpyrroles were efficiently converted to the corresponding 5-tosylpyrrolinones as the D-ring of phycocyanobilin (PCB) derivatives by treating with DMSO and Zn in TFA in the presence of a catalytic amount of iodine. PCB derivatives modified at the D-ring were prepared in free acid forms employing the resulting 5-tosylpyrrolinones toward structure/function analysis of phytochrome.