121570-26-1

Basic information

• Product Name: 1-(3-chlorophenyl)-3-(1,2,3-tri-O-acetyl-L-threo-glycerol-1-yl)-4,5-pyrazoledione 4-(3-chlorophenylhydrazone)
• CAS NO: 121570-26-1
• Molecular Weight: 549.367
• Mol File: 121570-26-1.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: 1-(3-chlorophenyl)-3-(1,2,3-tri-O-acetyl-L-threo-glycerol-1-yl)-4,5-pyrazoledione 4-(3-chlorophenylhydrazone)(CAS DataBase Reference)
• NIST Chemistry Reference: 1-(3-chlorophenyl)-3-(1,2,3-tri-O-acetyl-L-threo-glycerol-1-yl)-4,5-pyrazoledione 4-(3-chlorophenylhydrazone)(121570-26-1)
• EPA Substance Registry System: 1-(3-chlorophenyl)-3-(1,2,3-tri-O-acetyl-L-threo-glycerol-1-yl)-4,5-pyrazoledione 4-(3-chlorophenylhydrazone)(121570-26-1)

Safety Data

• Hazardous Substances Data: 121570-26-1(Hazardous Substances Data)

Upstream product

• 1128-23-0 L-ascorbic acid 
• 89912-64-1 L-threo-2,3-hexodiulosono-1,4-lactone 2,3-bis(3-chlorophenylhydrazone) 
• 89912-63-0 L-threo-2,3-hexodiulosono-1,4-lactone 2-(3-chlorophenylhydrazone) 
• 490-83-5 L-threo-2,3-hexodiulosono-1,4-lactone 
• 108-24-7 acetic anhydride 
• 89912-66-3 1-(3-chlorophenyl)-3-(L-threo-glycerol-1-yl)-4,5-pyrazoledione 4-(3-chlorophenylhydrazone) 

Relevant articles and documents

SYNTHESIS AND REACTIONS OF SOME HYDRAZONES OF DEHYDRO-L-ASCORBIC ACID

L-threo-2,3-Hexodiulosono-1,4-lactone 2-(3-chlorophenylhydrazone) and 4-(2-acetoxyethylidene)-4-hydroxy-2,3-dioxobutano-1,4-lactone 2-(3-chlorophenylhydrazone) were prepared.The two geometric isomers of the corresponding bis(hydrazone) underwent an intramolecular rearrangement to 1-(3-chlorophenyl)-3-(L-threo-glycerol-1-yl)-4,5-pyrazoledione 4-(3-chlorophenylhydrazone), which gave a tri-O-acetyl derivative upon acetylation and the anticipated formyl derivative upon periodate oxidation.Oxidation of the bis(hydrazone) with cupric chloride afforded the bicyclic compound 3,6-anhydro-3-C-(3-chlorophenylazo)-L-xylo-2-hexulosono-1,4-lactone 2-(3-chlorophenylhydrazone), whose acetylation afforded the mono-O-acetyl derivative.