55191-37-2

Upstream product

• 74511-08-3 3-(1-O-benzoyl-L-threo-glycerol-1-yl)-1-phenyl-4,5-pyrazoledione (4-phenylhydrazone) 

Downstream Products

• 74511-05-0 3-(2,3-O-isopropylidene-L-threo-glycerol-1-yl)-1-phenyl-4,5-pyrazoledione 4-(phenylhydrazone) 
• 88165-07-5 Toluene-4-sulfonic acid (4S,5S)-2,2-dimethyl-5-[5-oxo-1-phenyl-4-(phenyl-hydrazono)-4,5-dihydro-1H-pyrazol-3-yl]-[1,3]dioxolan-4-ylmethyl ester 
• 88165-05-3 Benzoic acid (4S,5S)-2,2-dimethyl-5-[5-oxo-1-phenyl-4-(phenyl-hydrazono)-4,5-dihydro-1H-pyrazol-3-yl]-[1,3]dioxolan-4-ylmethyl ester 
• 88165-04-2 Acetic acid (4S,5S)-2,2-dimethyl-5-[5-oxo-1-phenyl-4-(phenyl-hydrazono)-4,5-dihydro-1H-pyrazol-3-yl]-[1,3]dioxolan-4-ylmethyl ester 
• 88165-06-4 Benzoic acid (2S,3S)-2,3-dihydroxy-3-[5-oxo-1-phenyl-4-(phenyl-hydrazono)-4,5-dihydro-1H-pyrazol-3-yl]-propyl ester 
• 63621-89-6 3-carboxaldehyde-1-phenyl-4,5-pyrazolinedione-4-phenylhydrazone 
• 88165-03-1 3-(1,2-O-isopropylidene-L-threo-glycerol-1-yl)-1-phenyl-4,5-pyrazolinedione-4-(phenylhydrazone) 
• 74511-10-7 1-(p-bromophenyl)-3-(L-threo-glycerol-1-yl)-4,5-pyrazoledione 4-(p-bromophenylhydrazone) 
• 74511-07-2 3-(1-O-benzoyl-2,3-O-isopropylidene-L-threo-glycerol-1-yl)-1-phenyl-4,5-pyrazoledione 4-(phenylhydrazone) 
• 74511-08-3 3-(1-O-benzoyl-L-threo-glycerol-1-yl)-1-phenyl-4,5-pyrazoledione (4-phenylhydrazone) 
• 74511-09-4 1-phenyl-3-(1,2,3-tri-O-benzoyl-L-threo-glycerol-1-yl)-4,5-pyrazoledione 4-(phenylhydrazone) 
• 74511-06-1 3-(2,3-O-isopropylidene-1-O-p-tolylsulfonyl-L-threo-glycerol-1-yl)-1-phenyl-4,5-pyrazoledione 4-(phenylhydrazone) 
• 74511-11-8 1-(p-bromophenyl)-3-(2,3-O-isopropylidene-L-threo-glycerol-1-yl)-4,5-pyrazoledione 4-(p-bromophenylhydrazone) 

Relevant academic research and scientific papers

PARTIAL PROTECTION AND SUBSTITUTION OF L-threo-GLYCEROL-1-YLPYRAZOLEDIONE

Partial protection of the glycerol side-chain in 3-(L-threo-glycerol-1-yl)-1-phenyl-4,5-pyrazoledione 4-(phenylhydrazone) (2) was achieved via its acetonation; p-toluenesulfonylation then gave 3-(2,3-O-isopropylidene-1-O-p-tolylsulfonyl-L-threo-glycerol-1