1597532-47-2

Usage

Uses

HMTE is a diester monomer used for developing high-performance polyesters.

Upstream product

• 106-37-6 1.4-dibromobenzene 
• 624-38-4 para-diiodobenzene 
• 106-46-7 para-dichlorobenzene 
• 5333-13-1 3-bromo-2,4,6-trimethylbenzoic acid 
• 480-63-7 mesitylenecarboxylic acid 
• 26584-20-3 methyl 3-bromo-2,4,6-trimethyl-benzoate 

Relevant academic research and scientific papers

Method for synthesizing hexamethyl terphenyl dimethyl ester

The invention relates to a method for synthesizing hexamethyl terphenyl dimethyl ester. The method comprises the following steps: S1: in an inert atmosphere, at a temperature of -40 DEG C to -50 DEG Cand in the existence of a nucleophilic reagent, the 2,4,6-trimethylbenzoate with meta-position substituted by monohalogen is reacted with trialkyl borate in a first organic solvent or 3 to 5 hours toobtain 3-boric acid-2, 4, 6-methyl trimethyl benzoate; and S2: in an inert atmosphere and under reflux conditions, 3-boric acid-2,4,6-trimethylbenzoic acid methyl ester is reacted with benzene with para-position substituted by subhalogen, inorganic base and a catalyst in a second organic solvent for 16 to 19 hours, and hexamethyl terphenyl dimethyl ester can be obtained. The synthetic method hasthe beneficial effects that the p-dibromobenzene which is inexpensive and readily available is used as a raw material to synthesize hexamethyl terphenyl dimethyl ester, so that the cost is significantly reduced.