Reference

Radical oligomerization of a-methylstyrene in the presence of bromotrichloromethane

Radical oligomerization of a-methylstyrene in the presence of bromotrichloromethane. Kimura, Takao; Hamashima, Motome (Fac. Eng., Utsunomiya Univ., Utsunomiya 321, Japan). Kobunshi Ronbunshu, 40(12), 773-6 (Japanese) 1983. CODEN: KBRBA3. DOCUMENT TYPE: Journal CA Section: 35 (Chemistry of Synthetic High Polymers) Section cross-reference(s): 25 The radical oligomerization of a-methylstyrene (I) [98-83-9] was carried out at 50-90° using BrCCl3 [75-62-7] as a chain-transfer agent. Ten isolated telomers and oligomers corresponding to n-mers, where, n = 1-3, all had unsatd. or cyclic structures. Telomers contg. Br were not obsd.In this experiment, several chemicals are used like 88641-72-9 and 88641-75-2 Chain transfer of the growing radical was considered to occur to I rather than BrCCl3, resulting in the formation of the monomer radical, which contributed to the chain reaction effectively. .

Aliphatic and aromatic halocarbons as potential mutagens in drinking water

Aliphatic and aromatic halocarbons as potential mutagens in drinking water. Part I. Halogenated methanes. Strobel, K.; Grummt, T. (Res. Inst. Hyg. Microbiol., Bad Elster DDR-9933, Ger. Dem. Rep.). Toxicol. Environ. Chem., 13(3-4), 205-21 (English) 1987. CODEN: TECSDY. ISSN: 0277-2248. DOCUMENT TYPE: Journal CA Section: 4 (Toxicology) Dichloromethane (DCM) [75-09-2], bromodichloromethane [75-27-4], bromochloromethane (BCM) [74-97-5], bromotrichloromethane [75-62-7], and dibromomethane (DBM) [74-95-3] were tested for their mutagenic activity. The Ames test and in vitro cell cultures were used.There are some commonly used reagents with their cas registry numbers 74-97-5 and 74-95-3 in this article. All substances were pos. in the Ames test. In the in vitro test with FAF-cells of Chinese hamsters only BCM produced an increase of the sister chromatid exchange frequency. All tested substances induced an increase in the aberration ratio/cell. The highest ratios were induced by DCM, DBM, and BCM. .