Detail of "2550-40-5"

Reference

Process for preparation of N-(cyclohexylthio)phthalimide

All Rights Reserved. Process for preparation of N-(cyclohexylthio)phthalimide. Nishimura, Kazuaki; Okada, Isao (Toray Industries, Inc., Japan). Faming Zhuanli Shenqing Gongkai Shuomingshu CN 1880305 A 20 Dec 2006, 20pp.There are some reagents with their cas registry numbers 17796-82-6 and 2550-40-5 are used in this study. (Chinese). (People's Republic of China). CODEN: CNXXEV. APPLICATION: CN 2010-91840 12 Jun 2006. PRIORITY: JP 2005-173278 14 Jun 2005; JP 2006-4557 12 Jan 2006. DOCUMENT TYPE: Patent CA Section: 27 (Heterocyclic Compounds (One Hetero Atom)) Section cross-reference(s): 45 This invention provides an environment-friendly process for the prepn. of N-(cyclohexylthio)phthalimide, which comprises reacting dicyclohexyl disulfide with chlorine to obtain cyclohexylsulfenyl chloride, followed by the addn. of phthalimide to give the title compd. in high yield. .

Dicyclohexyl disulfide

Dicyclohexyl disulfide.Some chemicals with cas registry numbers like 2550-40-5 and 22868-13-9 are also used. Jurasek, Adolf; Kada, Rudolf; Klucovsky, Pavol; Knoppova, Viera; Kovac, Jaroslav; Masek, Jan; Uher, Michal; Zvak, Vladimir; Jezek, Marian (Czech.). Czech. CS 230861 B 15 Nov 1986, 4 pp. (Czechoslovakia) CODEN: CZXXA9. CLASS: ICM: C07C149-26. APPLICATION: CS 81-4309 10 Jun 1981. DOCUMENT TYPE: Patent CA Section: 45 (Industrial Organic Chemicals, Leather, Fats, and Waxes) Heating R1R (R1 = cyclohexyl; R = Cl, I, Br) with excess Na2S2 for 6-15 h at 80-140° in an aq. soln. contg. a surfactant (Slovasol EL) gave higher yields (70-84%) of (C6H11)2S2 than did process conducted in an alc. medium. Optionally, Na2S2 was prepd. in situ from Na2S and S at 95° and then treated with C6H11R as above. .