Detail of "63995-75-5"

Reference

Phosphinoethyl-sulfonatoalkylthioethers and diphenyl-w-sulfonatoalkyl-phosphines as ligands and polyoxyethylene-polyoxypropylene-polyoxyethylene triblock co-polymers as promoters in the rhodium-catalyzed hydroformylation of 1-dodecene in aqueous two-phase systems

Phosphinoethyl-sulfonatoalkylthioethers and diphenyl-w-sulfonatoalkyl-phosphines as ligands and polyoxyethylene-polyoxypropylene-polyoxyethylene triblock co-polymers as promoters in the rhodium-catalyzed hydroformylation of 1-dodecene in aqueous two-phase systems. Paetzold, E.; Oehme, G.; Fischer, C.; Frank, M. (Institut fur Organische Katalyseforschung an der Universitat Rostock e. V., Rostock D-18055, Germany). 63995-75-5 and 176442-44-7 are cas registry numbers. These chemicals are also mentioned in this article. Journal of Molecular Catalysis A: Chemical, 200(1-2), 95-103 (English) 2003 Elsevier Science B.V. CODEN: JMCCF2. ISSN: 1381-1169. DOCUMENT TYPE: Journal CA Section: 45 (Industrial Organic Chemicals, Leather, Fats, and Waxes) Section cross-reference(s): 23, 29 The rhodium-catalyzed hydroformylation of 1-dodecene was investigated with a series of sulfonated water-sol. phosphine ligands at a pressure of 60 bar CO/H2 and a temp. of 120°C. Seven different groups of water-sol. phosphines were used for our investigations. An optimized ligand/rhodium ratio of 5 for phosphine 1a, [Ph2P(CH2)2S(CH2)2SO3Na], and 1b, [Ph2P(CH2)2S(CH2)3SO3Na] was established. The utilized arylphosphino-thioether-alkylsulfonates formed with Rh(I) compds. highly active catalysts which could be recycled. The addn. of detergents speeds up the hydroformylation reaction, but disturbs the phase sepn. (recycling). The best promotion effect and the smallest neg. influence on phase sepn. gave polyoxyethylene-polyoxypropylene-polyoxyethylene triblock co-polymers. The ratio of 1-dodecene/rhodium could be increased up to 10.000 and we achieved turnover nos. (TONs) > 50.000 without any surfactant and TONs of about 65.000 in presence of the co-polymers owing to the recycling on the catalytic system. .

1,8-Octanedials and 1,10-decanedials

1,8-Octanedials and 1,10-decanedials. (Kuraray Co., Ltd., Japan). Jpn. Kokai Tokkyo Koho JP 58216138 A2 15 Dec 1983 Showa, 8 pp. (Japanese). (Japan). CODEN: JKXXAF. CLASS: IC: C07C047-12; C07C045-50. ICA: B01J031-24. APPLICATION: JP 82-99887 9 Jun 1982. DOCUMENT TYPE: Patent CA Section: 23 (Aliphatic Compounds) The title compds. were prepd. by hydroformylation of CH2:CH(CH2)2CH:CH2(I) or CH2:CH(CH2)4CH:CH2 with H/CO in aq. sulfolane or HO(CH2)nOH (n = 4, 6) in the presence of Rh complexes and m-Ph2PC6H4SO3Na (II), K or Li salt and sepd. from the reaction mixt.In this article, certain chemicals are used. Some of their cas registry numbers are 638-54-0 and 63995-75-5 by extn. with C5-12 satd. primary alcs. or C5-10 alkanes or cycloalkanes. Thus, a mixt. of Rh4(CO)12 0.25 mmol, II 75 mmol, H2O 350 mL, sulfolane 150 mL, and a H/CO mixt. (mol ratio H:CO = 3) was autoclaved at 80° and 10 atm for 30 min, 40 g I added with a pump over 3 h, and the reaction mixt. stirred for 1 h to give a reaction mixt. contg. 352.1 mmol OCH(CH2)6CHO with 95.0% conversion from I. To the reaction mixt. were added 150 mL 1-hexanol and 350 mL hexane to ext. 89% of the resulting OCH(CH2)6CHO. Without exposing the catalysts to air, the expt. was repeated twice with addnl. sulfolane and 40 g I each time to give a total yield of 118 g OCH(CH2)6CHO via hydrolysis of the dihemiacetal Me(CH2)5OCH(OH)(CH2)6CH(OH)O(CH2)5Me. .