3938-10-1

Basic information

• Product Name: 3,4,5-Trimethylpyrocatechol
• Synonyms: 3,4,5-Trimethyl-1,2-benzenediol;3,4,5-Trimethylpyrocatechol
• CAS NO: 3938-10-1
• Molecular Formula: C₉H₁₂O₂
• Molecular Weight: 0
• Mol File: 3938-10-1.mol
• Article Data: 4

Chemical Properties

• Appearance: /
• CAS DataBase Reference: 3,4,5-Trimethylpyrocatechol(CAS DataBase Reference)
• NIST Chemistry Reference: 3,4,5-Trimethylpyrocatechol(3938-10-1)
• EPA Substance Registry System: 3,4,5-Trimethylpyrocatechol(3938-10-1)

Safety Data

• Hazardous Substances Data: 3938-10-1(Hazardous Substances Data)

Upstream product

• 20547-99-3 2,6,6-trimethyl-1,4-cyclohexanedione 
• 108-24-7 acetic anhydride 
• 28750-52-9 2-hydroxy-4,4,6-trimethylcyclohexa-2,5-diene-1-one 

Relevant articles and documents

Efficient ortho-oxidation of phenols with diacyl peroxides

A stable symmetric diacyl peroxide, m-chlorobenzoyl peroxide (mCBPO), and an asymmetric diacyl peroxide, chloroacetyl m-chlorobenzoyl peroxide (CAMCBPO), were synthesized from m-chloroperbenzoic acid. Both peroxides oxidized phenols selectively at the ortho position predoninantly. CAMCBPO gave para-oxidized compounds as minor products from some phenols. The improvement of the yield of ortho-oxidation of phenols with mCBPO was also reported.

Trimethylcatechol diester and a method for producing the same

This method provides a novel trimethylcatechol diester, i.e. 3,4,5-trimethylcatechol diester, at a high yield by reacting 2,6,6-trimethylcyclohexe-2-en-1,4-dione with an acylating agent in the presence of an acid catalyst. The acylating agent includes a C2-4 carboxylic acid anhydride (e.g. acetic anhydride) and a C2-4 carboxylic acid halide (e.g. acetyl chloride). The catalyst includes a protonic acid and a Lewis acid. Use of a polar solvent (e.g. halogenated hydrocarbon), as the reaction catalyst, results in an enhanced efficiency in the production of the object compound.