Detail of "1809-20-7"

Reference

Polyolefins

Polyolefins. Bikushev, G. S.; Kuznetsov, E. V.; Grigor'ev, V. A.; Arkhipova, Z. V.; Amerik, V. V.; Ivanyukov, D. V.; Petrova, V. F.; Sof'ina, N. P.; Yakobson, F. I. (Kazan Chemical-Technological Institute, USSR). U.S.S.R. SU 596598 5 Mar 1978 From: Otkrytiya, Izobret., Prom. Obraztsy, Tovarnye Znaki 1978, 55(9), 110. (Russian). (Union of Soviet Socialist Republics). CODEN: URXXAF. CLASS: IC: C08F110-00. APPLICATION: SU 74-2042588 8 Jul 1974. DOCUMENT TYPE: Patent CA Section: 35 (Synthetic High Polymers) The yield of polyolefins with a regulated intrinsic viscosity was improved by use of a mixt. of diisopropyl phosphite [1809-20-7] and triisopropyl phosphite [116-17-6] as chain transfer agent in the polymn. of a-olefins in hydrocarbon solvent soln. in the presence of Group IV-VI transition metal halide-organoaluminum compd. catalysts.

Photodecomposition of S-Benzyl O,O-diisopropyl phosphorothiolate (Kitazin P)

Photodecomposition of S-Benzyl O,O-diisopropyl phosphorothiolate (Kitazin P). Murai, Toshinobu; Igawa, Hiromi (Natl. Inst. Agric. Sci., Tokyo, Japan). Agric. Biol. Chem., 41(5), 803-9 (English) 1977. CODEN: ABCHA6. ISSN: 0002-1369. DOCUMENT TYPE: Journal CA Section: 5 (Agrochemicals) Two main steps of photodecompn. were obsd. at the initial stage after the irradn. of Kitazin P [26087-47-8] with UV light in a thin film. One was the isomerization to a thionate, O-benzyl O,O-diisopropyl phophorothionate [42255-08-3], which was gradually hydrolyzed or oxidized to its oxygen analog [28519-13-3]. The other step was the cleavage of the P-S bond to produce O,O-diisopropyl phosphonate [1809-20-7] and a-toluenethiol [100-53-8], the latter of which was degraded to produce a-toluenesulfonic acid [100-87-8] via dibenzyl disulfide [150-60-7], and finally H2SO4 and benzoic acid [65-85-0]. Those compds. detected as hydrolyzates were O,O-diisopropyl hydrogen phosphorothioate [4486-44-6], O,O-diisopropyl hydrogen phosphate [1611-31-0], and benzyl alc. [100-51-6]. Benzyl alc. was further oxidized to benzoic acid via benzaldehyde [100-52-7]. In addn. to these compds., O,O,S-triisopropyl phosphorothiolate [63785-58-0], O,O,O-triisopropyl phosphorothionate [2464-03-1], O,O,O-triisopropyl phosphate and benzyl isopropyl sulfide [770-34-3] were also detected.