Reference

Reactions on Ziegler-Natta catalysts

Reactions on Ziegler-Natta catalysts. 15. Introduction of halogenated aralkyl groups into 1,4-polybutadiene and metathesis degradation of the modified polymers. Demel, Hans; Hummel, Klaus (Inst. Org. Chem. Org.-Chem. Technol., Tech. Univ. Graz, Graz, Austria). Makromol. Chem., 178(6), 1699-706 (German) 1977. CODEN: MACEAK. DOCUMENT TYPE: Journal CA Section: 35 (Synthetic High Polymers) 1,4-Polybutadiene [9003-17-2] was aralkylated with p-MeC6H4F [352-32-9], o- [95-49-8], m- [108-41-8], and p-MeC6H4Cl [106-43-4], p-BrC6H4Me [106-38-7], 2-chloro-p-xylene [95-72-7], and 2,4- [95-73-8] and 3,4-dichlorotoluene [95-75-0] in the presence of dicumyl peroxide [80-43-3]. The IR spectra of the products were detd., and the polymers were metathesized by 4-octene [592-99-4] and the products identified by gas chromatog.-mass spectroscopy. Aralkylation was accompanied by methylation.

Preparation of halophenyl hydroxyethyl sulfides, sulfoxides, and sulfones

Preparation of halophenyl hydroxyethyl sulfides, sulfoxides, and sulfones. Papenfuhs, Theodor (Hoechst A.-G. , Fed. Rep. Ger.). Ger. Offen. DE 3530709 A1 5 Mar 1987, 9 pp.Several reagents with their cas registry numbers 95-75-0 and 60-24-2 are used here. (Germany) CODEN: GWXXBX. CLASS: ICM: C07C149-36. ICS: C07C147-06; C07C147-14. APPLICATION: DE 85-3530709 28 Aug 1985. DOCUMENT TYPE: Patent CA Section: 25 (Benzene, Its Derivatives, and Condensed Benzenoid Compounds) The title compds. (I; X = Cl, Br; R = H, alkyl, Cl, Br; n = 0-2) are prepd. by reaction of halobenzenes with mercaptoethanols, followed by optional oxidn. Under an inert atm. a soln. contg. 297 parts 60% KOH and 234 parts mercaptoethanol at 35° was treated with 1000 parts 1,2-Cl2C6H4 in 300 parts polyglycol di-Me ether and the mixt. was heated at 115-120° for 15 h to give 340 parts (90%) I (R = H, X = 2-Cl, n = 0), which was oxidized to I (R = H, X = 2-Cl, n = 1 and 2). .