99070-89-0

Basic information

• Product Name: 4-chloro-cyclohexa-1,4-diene-1,2-dicarboxylic acid dimethyl ester
• Synonyms: 4-chloro-cyclohexa-1,4-diene-1,2-dicarboxylic acid dimethyl ester
• CAS NO: 99070-89-0
• Molecular Weight: 230.648
• Mol File: 99070-89-0.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: 4-chloro-cyclohexa-1,4-diene-1,2-dicarboxylic acid dimethyl ester(CAS DataBase Reference)
• NIST Chemistry Reference: 4-chloro-cyclohexa-1,4-diene-1,2-dicarboxylic acid dimethyl ester(99070-89-0)
• EPA Substance Registry System: 4-chloro-cyclohexa-1,4-diene-1,2-dicarboxylic acid dimethyl ester(99070-89-0)

Safety Data

• Hazardous Substances Data: 99070-89-0(Hazardous Substances Data)

Upstream product

• 762-42-5 dimethyl acetylenedicarboxylate 
• 126-99-8 chloroprene 

Downstream Products

• 7647-01-0 hydrogenchloride 
• 124-38-9 carbon dioxide 
• 65-85-0 benzoic acid 
• 110706-50-8 dimethyl 4-fluorophthalate 
• 157170-51-9 Dimethyl-4,5-dichloro-4-fluoro-3,4,5,6-tetrahydrophthalate 
• 157170-48-4 dimethyl 5-bromo-4-chloro-4-fluoro-3,4,5,6-tetrahydrophthalate 

Relevant articles and documents

Synthesis of 4-substituted phthalic anhydrides

Disclosed is a method of making a 4-substituted phthalic anhydride. A halomaleic (including halofumaric anhydride (or the acid or ester thereof) is made by the reaction of-maleic anhydride with chlorine or bromine. The halomaleic anhydride is reacted with a conjugated diene to form a first cycloadduct having the formula STR1 The first cycloadduct is heated to eliminate HX and produce a second cycloadduct having the formula STR2 The second cyclo adduct is dehydrogenated to produce a 4substituted phthalic anhydride which has the formula STR3 where R1, R2, and R4 are preferably H and R3 is preferably Cl or F.