Reference

Organic disulfides

Organic disulfides. Cipris, Divna; Pouli, Dirk (Allied Chemical Corp., USA). U.S. US 4069259 17 Jan 1978, 5 pp. (English). (United States of America). CODEN: USXXAM. CLASS: IC: C07C149-12. NCL: 260608000. APPLICATION: US 76-733727 19 Oct 1976. DOCUMENT TYPE: Patent CA Section: 38 (Elastomers, Including Natural Rubber) Section cross-reference(s): 25 Org. disulfides, useful as vulcanization accelerators and rubber latex antioxidants, are prepd. by reacting 1 mol org. sulfonyl halide with 35 mol mercaptan in such a way that byproduct sulfinic acid is not formed in the final product. Thus, a quant. yield of 2,5-dichlorobenzene disulfide [5335-80-8] is obtained by the reaction of a sulfolane soln. of 2,5-dichlorobenzenesulfonyl chloride [5402-73-3] and 2,5-dichlorobenzenethiol [5858-18-4] at 95° for 3 h.

2,5-Dihalophenyl sulfones

2,5-Dihalophenyl sulfones. Vofsi, David; Allingham, Yael (Yeda Research and Development Co. Ltd., Israel). Ger. Offen. DE 2736280 23 Feb 1978, 25 pp. (German). (Germany). CODEN: GWXXBX.There are some reagents like 9002-86-2 is used in this study. CLASS: IC: C07C147-06. PRIORITY: IL 76-50282 17 Aug 1976. DOCUMENT TYPE: Patent CA Section: 36 (Plastics Manufacture and Processing) Section cross-reference(s): 5, 25 The sulfones (I) with R = Cl or Br and R1 = CH2CHCl2, CH2CCl3, CH2CHClCO2Me, CH:CCl2, CH2CHClPh, CH2CHClBr, CH2CHClC6H4Br-p, or CH:CHCO2Me were prepd. The I had fungicidal activity and were useful in plastics, esp. PVC [9002-86-2]. Thus, 2,5-dichlorobenzenesulfonyl chloride [5402-73-3] and H2C:CHCl [75-01-4] were used to prep. I (R = Cl, R1 = CH2CHCl2) [66333-56-0]. .