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Volumn 16, Issue 20, 1997, Pages 4235-4236

Cobalt-catalyzed hydroformylation of olefins in the presence of additional "inert" gases

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Indexed keywords


EID: 0000422419     PISSN: 02767333     EISSN: None     Source Type: Journal    
DOI: 10.1021/om9704713     Document Type: Article
Times cited : (15)

References (62)
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    • Wender, I., Pino, P., Eds.; Interscience Publishers: New York, London, and Sidney
    • (a) Calderazzo, F.; Ercoli, R.; Natta, G. Metal Carbonyls: Preparation, Structure and Properties. In Organic Syntheses via Metal Carbonyls; Wender, I., Pino, P., Eds.; Interscience Publishers: New York, London, and Sidney, 1967; Vol. 1.
    • (1967) Organic Syntheses Via Metal Carbonyls , vol.1
    • Calderazzo, F.1    Ercoli, R.2    Natta, G.3
  • 49
    • 0002856939 scopus 로고
    • Reactions of Carbon Monoxide and Hydrogen with Olefinic Substrates: The Hydroformylation (OXO) Reactions
    • Wender, I., Pino, P., Eds.; Interscience Publishers: New York, London, and Sidney
    • (e) Pino, P.; Piacenti, F.; Bianchi, M. Reactions of Carbon Monoxide and Hydrogen with Olefinic Substrates: The Hydroformylation (OXO) Reactions. In Organic Syntheses via Metal Carbonyls; Wender, I., Pino, P., Eds.; Interscience Publishers: New York, London, and Sidney, 1977; Vol. 2, pp 43-231.
    • (1977) Organic Syntheses Via Metal Carbonyls , vol.2 , pp. 43-231
    • Pino, P.1    Piacenti, F.2    Bianchi, M.3
  • 50
    • 0004137416 scopus 로고
    • Carbonylation of Saturated Oxygenated Compounds
    • Wender, I., Pino, P., Eds.; Interscience Publishers: New York, London, and Sydney
    • (f) Piacenti, F.; Bianchi, M. Carbonylation of Saturated Oxygenated Compounds. In Organic Syntheses via Metal Carbonyls; Wender, I., Pino, P., Eds.; Interscience Publishers: New York, London, and Sydney, 1977; Vol. 2, pp 1-42.
    • (1977) Organic Syntheses via Metal Carbonyls , vol.2 , pp. 1-42
    • Piacenti, F.1    Bianchi, M.2
  • 57
    • 0008899630 scopus 로고
    • Sweany, R. L. J. Am. Chem. Soc. 1982, 104, 3739. Sweany, R. L.; Russel, F. N. Organometallics 1988, 7, 719.
    • (1982) J. Am. Chem. Soc. , vol.104 , pp. 3739
    • Sweany, R.L.1
  • 59
    • 85033167741 scopus 로고    scopus 로고
    • note
    • 3 and distilled under dinitrogen before use, bp 356 K. C. Erba reagent grade toluene was refluxed over sodium and distilled under dinitrogen before use.
  • 60
    • 85033159231 scopus 로고    scopus 로고
    • note
    • The hydroformylation experiments were performed in a stainless steel rocking autoclave, 25 mL capacity, capable of withstanding a pressure of several thousand bar, electrically heated with a temperature control (±1 K). Pressures were measured with a transducer with an accuracy of ±1 bar (transducer model Z Absolute, Sensotec). Molar ratios of liquid and gaseous reagents were chosen in such a way as to avoid a relevant pressure decrease. Solid catalyst was introduced under dinitrogen into the autoclave, which was then evacuated; solvent and olefin were introduced by suction, and then carbon monoxide was pressurized up to 5 bar. Rocking and heating were then started, and at 373 K the carbon monoxide pressure was increased to 70 atm. Within 1 min, dihydrogen up to a total pressure of 160 bar (85 ± 2 bar of dihydrogen from control experiments) and the additional gas up to the required pressure (see Table 1) were introduced into the still autoclave, which was rocked again immediately after. After 3 h, the autoclave was rapidly cooled by immersion into water. Gases were vented through a condenser, and the clear yellow solution was subjected to GLC chromatography to determine the conversion to cyclohexanecarboxaldehyde based on both residual cyclohexene and formed aldehyde. Olefin hydrogenation was always low, below 1%. Compressibilities of both dinitrogen and argon were estimated, with an accuracy sufficient for our purpose, by volumetric measurements, as a function of pressure, of the gas released at atmospheric pressure from an empty autoclave maintained at 373 K. Similar experiments performed in the presence of a known volume of solvent provided sufficient data for an evaluation of the amount of dissolved gas.
  • 61
    • 85033159240 scopus 로고    scopus 로고
    • note
    • Dinitrogen (99.996% pure), argon, (99.998% pure), CO (99.3% pure), and hydrogen (99.85% pure) were supplied by SOL. Octacarbonyldicobalt, supplied by Strem Chemicals, was recrystallized before use.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.