91061-82-4

Basic information

• Product Name: 4,5-DIMETHYL-1,4-CYCLOHEXADIENE-1,2-DICARBOXYLIC ACID
• Synonyms: 4,5-DIMETHYL-1,4-CYCLOHEXADIENE-1,2-DICARBOXYLIC ACID
• CAS NO: 91061-82-4
• Molecular Formula: C₁₀H₁₂O₄
• Molecular Weight: 196.2
• Mol File: 91061-82-4.mol
• Article Data: 2

Chemical Properties

• Appearance: /
• CAS DataBase Reference: 4,5-DIMETHYL-1,4-CYCLOHEXADIENE-1,2-DICARBOXYLIC ACID(CAS DataBase Reference)
• NIST Chemistry Reference: 4,5-DIMETHYL-1,4-CYCLOHEXADIENE-1,2-DICARBOXYLIC ACID(91061-82-4)
• EPA Substance Registry System: 4,5-DIMETHYL-1,4-CYCLOHEXADIENE-1,2-DICARBOXYLIC ACID(91061-82-4)

Safety Data

• Hazardous Substances Data: 91061-82-4(Hazardous Substances Data)

Upstream product

• 64437-91-8 4,5-Dimethyl-1,4-cyclohexadien-1,2-dicarbonsaeure-anhydrid 
• 623-11-0 1-methyl-4-nitrosobenzene 
• 513-81-5 2,3-dimethyl-buta-1,3-diene 
• 142-45-0 Acetylenedicarboxylic acid 
• 14309-24-1 dimethyl 4,5-dimethylcyclohexa-1,4-diene-1,2-dicarboxylate 

Relevant articles and documents

Mild and efficient boronic acid catalysis of Diels-Alder cycloadditions to 2-alkynoic acids

The concept of boronic acid catalysis (BAC) for the activation of unsaturated carboxylic acids is applied to the Diels-Alder cycloaddition between 2-alkynoic acids as dienophiles and various dienes. These [4+2] cycloadditions produce cyclohexadienyl carboxylic acids, which can be oxidized in situ to produce polysubstituted aromatic carboxylic acids. The boronic acid catalyst is suspected to provide activation by a LUMO-lowering effect of the unsaturated carboxylic acid likely via a covalent, monoacylated hemiboronic ester intermediate.