66888-67-3

Basic information

• Product Name: Benzoic acid, 4,4'-(1E)-1,2-ethenediylbis-, diethyl ester
• CAS NO: 66888-67-3
• Molecular Formula: C20H20O4
• Molecular Weight: 324.376
• Mol File: 66888-67-3.mol

Chemical Properties

• CAS DataBase Reference: Benzoic acid, 4,4'-(1E)-1,2-ethenediylbis-, diethyl ester(CAS DataBase Reference)
• NIST Chemistry Reference: Benzoic acid, 4,4'-(1E)-1,2-ethenediylbis-, diethyl ester(66888-67-3)
• EPA Substance Registry System: Benzoic acid, 4,4'-(1E)-1,2-ethenediylbis-, diethyl ester(66888-67-3)

Safety Data

• Hazardous Substances Data: 66888-67-3(Hazardous Substances Data)

Upstream product

• 83536-13-4 bis(4-ethoxycarbonylphenyl)acetylene 
• 10602-03-6 ethyl 4-ethynylbenzoate 
• 51934-41-9 4-iodobenzoic acid ethyl ester 
• 94-08-6 4-methylbenzoic acid ethyl ester 
• 26496-95-7 α,α-dibromo-p-methylbenzoic acid ethyl ester 
• 99-94-5 p-Toluic acid 
• 100-31-2 Stilbene-4,4'-dicarboxylic acid 

Downstream Products

• 60682-97-5 (1E)-1,2-bis[3-(bromomethyl)phenyl]diazene 
• 77370-63-9 diethylester of 2,3-di-(4-carboxyphenyl) oxirane 
• 84907-53-9 (E)-1,2-bis-(p-phenylaldehyde)ethene 
• 66888-68-4 4,4'-bis(hydroxymethyl)-trans-stilbene 
• 100-31-2 Stilbene-4,4'-dicarboxylic acid 

Relevant articles and documents

Method for preparing trans-diphenylethylene compound

The invention relates to a preparation method of organic compounds and provides a method for preparing a trans-diphenylethylene compound. The method comprises adding a gem-dibromomethyl aromatic hydrocarbon compound, copper and polyamine into a reactor in the presence of a solvent, carrying out deoxidizing treatment, adding an oxygen-free water-free solvent into the reactor, carrying out a coupling reaction process to obtain C-C- double bonds, and carrying out separation and purification to obtain the trans-diphenylethylene compound. The method has mild synthesis conditions and has good reaction compatibility to different functional groups. The gem-dibromomethyl aromatic hydrocarbon compound as a raw material is easy to synthesize, may have different substituent groups and has a variable structure. The product obtained by coupling a raw material can be simply treated and has high purity. The asymmetric trans-diphenylethylene compound can be prepared from two different raw materials.

E-Stilbene derivatives synthesized by stereoselective reductive coupling of benzylic gem-dibromide promoted by Cu/polyamine

Stereoselective reductive coupling reaction of benzylic gem-dibromide promoted by Cu/polyamine produces E-stilbene derivatives with high yield under mild conditions. It provides a short pathway to synthesize symmetrical and asymmetrical E-stilbene derivatives using cheap reagents and alkenyl-free starting material together with easy workup.

Site-Selective Catalytic Carboxylation of Unsaturated Hydrocarbons with CO2 and Water

A catalytic protocol that reliably predicts and controls the site-selective incorporation of CO2 to a wide range of unsaturated hydrocarbons utilizing water as formal hydride source is described. This platform unlocks an opportunity to catalytically repurpose three abundant, orthogonal feedstocks under mild conditions.

The synthesis of some head to head linked DNA minor groove binders

A series of head to head linked dimers of heterocyclic amino acids has been prepared for investigation of affinity and selectivity in binding to the minor groove of DNA. The selection of targets for synthesis was led by computer based design. Several novel dicarboxylic acid linkers including indoles, phenanthrenes, a fluorenone, and a bisbenzothiophene have been included. Analysis of binding to DNA by footprinting showed high affinity for compounds derived from 2,7-dihydrophenanthrene dicarboxylic acid and a predominant selectivity for AT rich regions containing at least 4 AT pairs but with the ability to span up to two CG base pairs. (C) 2000 Elsevier Science Ltd.