5660-56-0

Basic information

• Product Name: see 1,3-Dioxolane,2,2'-(1,4-phenylene)bis-
• CAS NO: 5660-56-0
• Molecular Weight: 222.241
• Mol File: 5660-56-0.mol
• Article Data: 6

Chemical Properties

• CAS DataBase Reference: see 1,3-Dioxolane,2,2'-(1,4-phenylene)bis- (CAS DataBase Reference)
• NIST Chemistry Reference: see 1,3-Dioxolane,2,2'-(1,4-phenylene)bis- (5660-56-0)
• EPA Substance Registry System: see 1,3-Dioxolane,2,2'-(1,4-phenylene)bis- (5660-56-0)

Safety Data

• Hazardous Substances Data: 5660-56-0(Hazardous Substances Data)

Upstream product

• 623-27-8 terephthalaldehyde, 
• 107-21-1 ethylene glycol 

Downstream Products

• 1026-93-3 bis(2-chloroxyethyl) terephthalate 
• 32676-75-8 bis(2-bromoethyl)terephthalate 
• 1450806-21-9 1,4-bis(1-(1,3-dioxolan-2-yl)-2,2,2-trifluoroethyl)benzene 
• 108722-38-9 1-[1,3]dioxolan-2-yl-4-(2-hydroperoxy-[1,3]dioxolan-2-yl)-benzene 
• 623-27-8 terephthalaldehyde, 

Relevant articles and documents

Synthesis of tricarbonyl(diacetylarene)chromium and tricarbonyl(diformylarene)chromium complexes

Tricarbonylchromium complexes of diacetylbenzenes and 2,2′-diacetylbiphenyl were prepared in reasonable yields by direct complexation of the starting materials. Tricarbonyl-chromium complexes of diformylbenzenes and 2,2′-diformylbiphenyl were prepared in

Homologative trifluoromethylation of acetals

Trifluoroethyl α-insertion of acetals has been developed. Aromatic, heteroaromatic, and alkenyl acetals react with in situ generated (trifluoromethyl)diazomethane in the presence of antimony(V) chloride to furnish α-trifluoromethyl acetals. A stereoselective version of this transformation exploiting the acetal as a chiral auxiliary is also presented. Georg Thieme Verlag Stuttgart · New York.

Selective Catalytic Transesterification, Transthiolesterification, and Protection of Carbonyl Compounds over Natural Kaolinitic Clay

Transesterification and transthiolesterification of β-keto esters with variety of alcohols and thiols and selective protection of carbonyl functions with various protecting groups catalyzed by natural kaolinitic clay are described. The clay has been found to be an efficient catalyst in transesterifying long chain alcohols, unsaturated alcohols, and phenols to give their corresponding β-keto esters in high yields. For the first time, transthiolesterification of β-keto esters with a variety of thiols has been achieved under catalytic conditions. Clay also catalyzes selective transesterification of β-keto esters by primary alcohols in the presence of secondary and tertiary alcohols giving corresponding β-keto esters. A systematic study involving the reactivity of different nucleophiles (alcohols, amines, and thiols) toward β-keto esters is also described. Sterically hindered carbonyl groups as well as α,β-unsaturated carbonyl groups underwent protection without the deconjugation of the double bond. Chemoselective protection of aldehydes in the presence of ketones has also been achieved over natural kaolinitic clay.