4204-60-8

Basic information

• Product Name: dimethyl 4,4'-[1,2-ethanediylbis(oxy)]bisbenzoate
• Synonyms: dimethyl 4,4'-[1,2-ethanediylbis(oxy)]bisbenzoate;1,2-Bis(p-methoxycarbonylphenoxy)ethane;4,4'-(1,2-Ethanediyl)bisoxybis(benzoic acid methyl) ester;4,4'-(Ethylenebisoxy)bis(benzoic acid methyl) ester;4,4'-(Ethylenebisoxy)bisbenzoic acid dimethyl ester;Einecs 224-117-3;BBCJQHYOGQEOAA-UHFFFAOYSA-N
• CAS NO: 4204-60-8
• Molecular Formula: C₁₈H₁₈O₆
• Molecular Weight: 330.33192
• EINECS: 224-117-3
• Mol File: 4204-60-8.mol
• Article Data: 4

Chemical Properties

• Boiling Point: 474.5°Cat760mmHg
• Flash Point: 209.2°C
• Appearance: /
• Density: 1.205g/cm³
• CAS DataBase Reference: dimethyl 4,4'-[1,2-ethanediylbis(oxy)]bisbenzoate(CAS DataBase Reference)
• NIST Chemistry Reference: dimethyl 4,4'-[1,2-ethanediylbis(oxy)]bisbenzoate(4204-60-8)
• EPA Substance Registry System: dimethyl 4,4'-[1,2-ethanediylbis(oxy)]bisbenzoate(4204-60-8)

Safety Data

• Hazardous Substances Data: 4204-60-8(Hazardous Substances Data)

Upstream product

• 67-63-0 isopropyl alcohol 
• 1571-08-0 methyl 4-formylbenzoate 
• 497-19-8 sodium carbonate 
• 38567-00-9 4-(2-Chloroethoxy)benzoic acid methyl ester 
• 99-76-3 methyl 4-hydroxylbenzoate 
• 107-06-2 1,2-dichloro-ethane 
• 65-85-0 benzoic acid 
• 6315-52-2 1,2-bis-tosyloxyethane 
• 67-56-1 methanol 
• 15149-11-8 1,1'-[ethane-1,2-diylbis(oxy)]bis(4-methylbenzene) 

Downstream Products

• 91401-08-0 1,2-bis(4-bromomethylphenoxy)ethane 
• 10604-81-6 1,2-bis(4'-carboxy-phenoxy)ethane diacid dichloride 
• 93006-44-1 1,2-Di(p-hydroxymethylphenoxy)ethane 

Relevant articles and documents

Self-complementary [2]catenanes and their related [3]catenanes

Three [3]catenanes with cavities large enough to accommodate aromatic guests have been designed and synthesized (yields = 5-20%) by means of kinetically controlled self-assembly processes. The X-ray structural analysis of one of three [3]catenanes confirmed the presence of a rectangular cavity (dimensions = 7 ×11 A) lined by π-electron-rich recognition sites and hydro-gen-bond acceptor groups. In spite of their apparently ideal recognition features, none of these [3]catenanes bind guests incorporating a π-electron-deficient bipyridinium unit. However, the template-directed syntheses of the [3]catenanes also produce, in yields of 2-23%, [2]catenanes incorporating a l,5-dioxynaphtho[38]crown-10 inter-locked with a bipyridinium-based tetracationic cyclophane. The X-ray structural analyses of two of these [2]catenanes revealed that a combination of [π...π] and [C-H...π] interactions is responsible for the formation of supramolecular homodimers in the solid state. 1H NMR spectroscopic investigations of the four [2]catenanes demonstrated that supramolecular homodimers are also formed (Ka= 17-31M-1, T= 185 K) in (CD3)2CO solutions. Dynamic 1H NMR spectroscopy revealed that the 1,5-dioxynaphtho[38]crown-10 and tetracationic cyclophane components in the four [2]catenanes and in the three [3]catenanes circumrotate (ΔGC? = 9-14 kcal mol-1) through each other's cavity in (CD3)2CO. Similarly, the 1,5-dioxynaphthalene and the bipyridinium ring systems rotate (ΔGc? =10-14 kcalmol-1) about their [O...O] and [N ... N] axes, respectively, in solution.

RADIATION-INDUCED REDUCTION OF AROMATIC CARBOXYLIC ESTERS IN ALCOHOLIC SOLUTIONS

Gamma-irradiation of aromatic carboxylic esters in alcoholic solutions brings about the reduction of the ester group to aldehyde, alcohol, α-ketoalcohol, and 1,2-glycol.The reduction is effected by solvated electrons and solvent-derived hydroxyalkyl radicals.