63440-94-8

Basic information

• Product Name: 3,8,15,20,27,32-Hexaoxatetracyclo[32.2.2.210,13.222,25]dotetraconta-1(3
• Synonyms: 3,8,15,20,27,32-Hexaoxatetracyclo[32.2.2.210,13.222,25]dotetraconta-1(3;3,8,15,20,27,32-Hexaoxatetracyclo[32.2.2.210,13.222,25]dotetraconta-10,12,22,24,34,36,37,39,41-nonaene-2,9,14,21,26,33-hexone;Cyclotris(1,4-butylene Terephthalate);PBT Cyclic TriMer;3,8,15,20,27,32-Hexaoxatetracyclo[32.2.2.210,13.222,25]dotetraconta-1(36),10,12,22,24,34,37,39,41-nonaene-2,9,14,21,26,33-hexone
• CAS NO: 63440-94-8
• Molecular Formula: C36H36O12
• Molecular Weight: 660.66384
• Product Categories: Aromatics;Heterocycles;Impurities;Intermediates
• Mol File: 63440-94-8.mol
• Article Data: 5

Chemical Properties

• Boiling Point: 969.2±65.0 °C(Predicted)
• Appearance: /
• Density: 1.208±0.06 g/cm3(Predicted)
• Storage Temp.: Refrigerator
• Solubility: Chloroform (Slightly), Ethyl Acetate (Slightly, Heated), Methanol (Slightly)
• CAS DataBase Reference: 3,8,15,20,27,32-Hexaoxatetracyclo[32.2.2.210,13.222,25]dotetraconta-1(3(CAS DataBase Reference)
• NIST Chemistry Reference: 3,8,15,20,27,32-Hexaoxatetracyclo[32.2.2.210,13.222,25]dotetraconta-1(3(63440-94-8)
• EPA Substance Registry System: 3,8,15,20,27,32-Hexaoxatetracyclo[32.2.2.210,13.222,25]dotetraconta-1(3(63440-94-8)

Safety Data

• Hazardous Substances Data: 63440-94-8(Hazardous Substances Data)

Usage

Uses

Cyclotris(1,4-butylene terephthalate) is a cyclic trimer of poly(butylene terephthalate), a thermoplastic engineering polymer.

Upstream product

• 19851-61-7 p-dibenzyl benzenedicarboxylate 
• 100-20-9 terephthaloyl chloride 
• 23358-95-4 bis(4-hydroxy-butyl) terephthalate 
• 24968-12-5 terephthalic acid mono(4-benzyloxybutyl) ester 
• 24968-12-5 bis(4-benzyloxybutyl) terephthalate 
• 18520-63-3 monobenzyl terephthalate 
• 120-61-6 1,4-benzenedicarboxylic acid dimethyl ester 
• 110-63-4 Butane-1,4-diol 
• 142650-66-6 4-(allyloxycarbonyl)benzoic acid 
• 142650-55-3 4-formylbenzoic acid allyl ester 

Relevant articles and documents

Preparation method of cyclic poly (butylene terephthalate) (by machine translation)

The invention discloses a cyclic trimetric polybutylene terephthalate preparation method. The method comprises the steps: (a) preparing bis(4-(4-allyl terephthaloyl oxy)butyl)polyethylene terephthalate (III) from bis-(4-hydroxyl butyl)-polyethylene terephthalate (I) and 4-(allyloxy carbonyl)benzoic acid (II) under action of a condensing agent and an auxiliary reagent; (b) preparing cyclic trimetric polybutylene terephthalate precursor (IV) by ring closure of the bis(4-(4-allyl terephthaloyl oxy)butyl)polyethylene terephthalate (III) under the action of a Grubbs catalyst and lewis acid; (c) hydrogenating the cyclic trimetric polybutylene terephthalate precursor under the action of Pd/C to obtain cyclic trimetric polybutylene terephthalate (V). The preparation method disclosed by the invention has the advantages that the raw materials are cheap and easy to obtain, a synthesizing route is simple and short, a yield is high, and conditions are easy to control.(The formula is shown in the description.).

A practical synthesis of the cyclic butylene terephthalate trimer

This paper described a practical synthetic approach for the cyclic butylene terephthalate trimer (7). The key step was a ring-closing metathesis, using Grubbs' second-generation catalyst to form the macrocyclic ring. The advantages of this procedure included short reaction steps, simple operations and good yields.

Polybutylene terephthalate cyclic trimerization preparation of (by machine translation)

The invention specifically has described a kind of new cyclic trimeric butylene terephthalate (Cyclic PBT Dimer) method for preparing, in the terephthalic chloride and 1, the 4 the protecting [...] butanediol as raw material with oriented synthesis strategy of deprotection of the polybutylene terephthalate cyclic trimerization, in the plastics can be used for the PBT polybutylene terephthalate cyclic trimerization contrast analysis of the impurity with the detection. Said product of this invention the chemical structural formula is: (by machine translation)