Reference

Catalysts for hydrogenation of carbon monoxide

Catalysts for hydrogenation of carbon monoxide. (Hara, Zennori, Japan). Jpn. Kokai Tokkyo Koho JP 58157733 A2 19 Sep 1983 Showa, 5 pp. (Japanese).In this study， 683-16-9 and 7264-90-6 are also used. (Japan). CODEN: JKXXAF. CLASS: IC: C07C029-15; C07C031-04. ICA: B01J031-24; B01J031-28. APPLICATION: JP 82-38041 12 Mar 1982. DOCUMENT TYPE: Patent CA Section: 45 (Industrial Organic Chemicals, Leather, Fats, and Waxes) Section cross-reference(s): 23, 67 Hydrogen reacts with CO in the liq. phase to form O-contg. compds. in the presence of catalysts contg. Ru compds. and phosphine oxide salts and/or phosphine oxides having halogen-P bonds. Thus, a 35-cm3 autoclave contg. 0.133 mmol Ru3(CO)12 [15243-33-1], 2.4 mmol Ph2POCl [1499-21-4], and 10 mL N-methylpyrrolidone was pressurized to 300 kg/cm2 with 1:1 (vol.) CO-H2, heated to 220° (420 kg/cm2), and allowed to react for 4 h. Prodn. of methanol [67-56-1], ethanol [64-17-5], and ethylene glycol [107-21-1] was 3.84, 0.96, and 0.65 mol/g-atom Ru-h, resp., compared with 0.43, 0.10, and 0, resp., in the absence of Ph2POCl. .

Process for preparation of phosphine oxide derivatives

Process for preparation of phosphine oxide derivatives. Cho, Yeong Jun; Kim, Beom Jun; Kim, Seon Gyu (Hyosung Corporation, S. Korea). Repub. Korean Kongkae Taeho Kongbo KR 2003057798 A 7 Jul 2003, No pp. given (Korean). (Korea, Republic Of). CODEN: KRXXA7. CLASS: ICM: C07F009-53. APPLICATION: KR 2001-87882 29 Dec 2001. DOCUMENT TYPE: Patent CA Section: 29 (Organometallic and Organometalloidal Compounds) Phosphine oxide derivs. and a prepn. process thereof are provided. The compds.Several substances with their cas registry numbers 1499-21-4 and 7439-95-4 may be metioned in this study. are useful for the prepn. of polyarylene ether having improved adhesion and optical properties. Bis(3-hydroxyphenyl)phosphine oxide derivs. represented by the formula 1 are provided, wherein R is H or CF3. A process for prepg. bis(3-hydroxyphenyl)-3,5-bis(trifluoromethyl)phenylphosphine oxide comprises the steps of: reacting Mg turing with 3,5-bis(trifluoromethyl) bromobenzene in THF solvent to prep. a Grignard reagent; reacting the Grignard reagent with diphenylphosphinic chloride to prep. 3,5-bis(trifluoromethyl) phenyl-diphenyl phosphine oxide, and nitrification of 3,5-bis(trifluoromethyl) phenyl-diphenyl phosphine oxide to prep. bis(3-nitrophenyl)-3,5-bis(trifluoromethyl) Ph phosphine oxide; amination of bis(3-nitrophenyl)-3,5-bis(trifluoromethyl) Ph phosphine oxide in anhyd. ethanol in the presence of palladium catalyst using hydrazine to prep. bis(3-aminophenyl)-3,5-bis(trifluoromethyl)phenyl phosphine oxide; and diazotization of bis(3-aminophenyl)-3,5-bis(trifluoromethyl)phenyl phosphine oxide to prep. diazonium salt, and hydrolysis of diazonium salt to substitute amino group with hydroxy group. .