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B. K. Nefedov V. A. Petukhov N. S. Sergeeva Ya. T. Éidus 《Russian Chemical Bulletin》1976,25(7):1466-1469
| 1. | It was shown by the UV spectroscopy method that the active initiators of the Liquid-phase carbonylation of amines with CO are oxidizing agents that form charge-transfer complexes with the amines. |
| 2. | The carbonylation of piperidine with CO in the presence of I2 or KMnO4 is inhibited by excess initiator The addition of a second initiator to the reaction system retards the carbonylation due to a decrease in the rate of forming the complex of the first initiator with the amine. |
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Conclusions From the UV spectra it follows that the chain reaction for the carbonylation of piperidine, initiated by CuCl2, proceeds via the Intermediate formation of charge-transfer complexes, in which the Cu2+ ion undergoes oxidation-reduction reaction with the free electron pair of the amine.Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 12, pp. 2705–2708, December, 1973. 相似文献
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Conclusions The butyl ester of-butoxypropionic acid was synthesized by the carbonylation of-butoxyethylmercury acetate at 150–250° and 50–150 atm, in which connection the maximum yield was obtained at 200° and 100 atm.Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 8, pp. 1751–1753, August, 1972. 相似文献
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B. K. Nefedov N. S. Sergeeva T. V. Zueva E. M. Shutkina Ya. T. Eidus 《Russian Chemical Bulletin》1976,25(3):565-569
| 1. | Methanol, containing 10–20 mole % of CH3I, is carbonylated to methyl acetate in the presence of impregnated Eh-zeolite NaX catalyst at 230–250° and atmospheric pressure. |
| 2. | The specific (per gram of Rh) rate of methyl acetate formation is antibatic to the Rh content in the catalyst, it increases with increase in the methanol contact time, and shows little change in the range 230–250°. |
| 3. | The rate of forming the sole secondary product, namely dimethyl ether, decreases with increase in the amount of Rh and the methanol contact time. |
| 4. | CH2I is an astoichiometric component of the reaction. |
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Conclusions The intermediate products, formed in the synthesis of the esters of-alkoxypropionic acids by the carbonylation of ethylene with CO in an aliphatic alcohol medium, in the presence of mercuric acetate, were isolated and characterized.Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 11, pp. 2494–2496, November, 1972. 相似文献
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Conclusions 1-Propanol and 1-butanol are carbonylated with CO in the presence of CuCl2 to give dialkyl carbonates at <100° and alkyl formates at >100°; at >100° the carbonylation is accompanied by dehydration and hydrochlorination reactions.Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 4, pp. 804–806, April, 1973. 相似文献
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B. P. Gusev E. A. Él'perina V. F. Kucherov S. D. Plrozhkov A. L. Lapidus 《Russian Chemical Bulletin》1980,29(3):421-425
Conclusions Carbonylation of acetylenic alcohols in the presence of Pd-black and cobalt carbonyl leads to derivatives of alkylidenesuccinic acids in yield of 50%.Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 3, pp. 603–607, March, 1980. 相似文献
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