Detail of "1679-64-7"

Oxidation reactor: Oxidation reactor. Klingman, Gilbert E.Some chemicals with cas registry numbers like 99-75-2 and 99-94-5 are also used. (Bechtel International Corp., USA). Eur. Pat. Appl. EP 96082 A1 21 Dec 1983, 19 pp. DESIGNATED STATES: R: DE, FR, IT, NL. (English). (European Patent Organization). CODEN: EPXXDW. CLASS: IC: C07C069-82; C07C063-04; C07C051-265; C07C067-39; B01J008-22; B01J019-26. APPLICATION: EP 82-104886 3 Jun 1982. DOCUMENT TYPE: Patent CA Section: 35 (Chemistry of Synthetic High Polymers) Section cross-reference(s): 25 p-Xylene [106-42-3] is oxidized to p-toluic acid [99-94-5] and/or methyl p-toluate [99-75-2] is oxidized to Me terephthalate [1679-64-7] in a catalyst-contg. medium flowing through an induced-circulation reactor comprising 2 vertical columns connected at the tops and bottoms. Circulation is induced because 1 column contains a gas-liq. mixt. which rises while the denser, essentially ungasified liq. in the other column falls. Temp. variations in the reactor are <6°. The reactor is esp. useful for the manuf. of dimethyl terephthalate [120-61-6]. The reactor is operated continuously by venting gas from the reactor while adding starting compds. and removing oxidn. products. .

Epoxy esters: Epoxy esters. (Hitachi Chemical Co., Ltd., Japan). Jpn. Kokai Tokkyo Koho JP 58111825 A2 4 Jul 1983 Showa, 5 pp. (Japanese). (Japan).Some commonly used reagents like 87805-88-7 and 2451-62-9 are used in this experiment. CODEN: JKXXAF. CLASS: IC: C08G059-14. ICA: C09D003-58; C09D005-00; C09D005-40. APPLICATION: JP 81-213878 24 Dec 1981. DOCUMENT TYPE: Patent CA Section: 37 (Plastics Manufacture and Processing) The title esters are prepd. from polyepoxides or epoxy resins and monoalkyl benzenedicarboxylates using as catalyst 0.01-5% RR1R2R3NX (R,R1,R2 = H, alkyl, cycloalkyl, or arom. group; R3 = alkyl, cycloalkyl, arom., or hydrocarbyl contg. amino, carbamoyl, carbonyl, or ether group; X = Cl, Br, or I). The esters may be used as intermediates for epoxy-contg. polyesters. Thus, Epikote 828 [25068-38-6] (epoxy equiv 184-194, mol. wt. 380) 760, mono-Me terephthalate [1679-64-7] 360, and benzyldodecyldimethylammonium chloride [139-07-1] 1.1 g were heated 6 h at 95° to give Epikote 828 Me terephthalate [87805-88-7]. .