67504-35-2

Basic information

• Product Name: 3-methyl-endo-bicyclo<2.2.2>oct-5-ene-2,3-dicarboxylic anhydride
• CAS NO: 67504-35-2
• Molecular Weight: 192.214
• Mol File: 67504-35-2.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: 3-methyl-endo-bicyclo<2.2.2>oct-5-ene-2,3-dicarboxylic anhydride(CAS DataBase Reference)
• NIST Chemistry Reference: 3-methyl-endo-bicyclo<2.2.2>oct-5-ene-2,3-dicarboxylic anhydride(67504-35-2)
• EPA Substance Registry System: 3-methyl-endo-bicyclo<2.2.2>oct-5-ene-2,3-dicarboxylic anhydride(67504-35-2)

Safety Data

• Hazardous Substances Data: 67504-35-2(Hazardous Substances Data)

Upstream product

• 20537-97-7 methylfumaroyl chloride 
• 1165952-91-9 cyclohexa-1,3-diene 
• 117203-63-1 2-exo-methylbicyclo<2.2.2>oct-5-ene-trans-2,3-dicarboxylic acid 
• 2170-03-8 itaconic acid anhydride 
• 616-02-4 citraconic acid anhydride 
• 1165952-92-0 cyclohexa-1,4-diene 

Relevant articles and documents

Synthesis of exo-Bicyclooct-5-ene-dicarboxylic Anhydrides by Thermal Isomerization of trans-Diacids

Bicyclooct-5-ene-trans-1,2-dicarboxylic acid and substituted analogues afford mixtures of the corresponding exo- and endo-anhydrides upon heating at 250-300 deg C.This isomerization provides a practical pathway to substituted and deuterium-labeled exo-anhydrides which are otherwise difficult to obtain.A mechanistic study shows that retro-diene fragmentation is not involved in the isomerization.