OXIDATIVE CARBONYLATION OF CYCLOHEXYLAMINE TO CYCLOHEXYLURETHANE CATALYZED BY DICHLOROBIS-(SALICYLALDEHYDE)-ORTHO-PHENYLENEDIIMINATO RUTHENATE(III)

被引:9
作者
KHAN, MMT
HALLIGUDI, SB
RAO, NS
机构
[1] Discipline of Coordination Chemistry and Homogeneous Catalysis, Central Salt and Marine Chemicals Research Institute, Bhavnagar
来源
JOURNAL OF MOLECULAR CATALYSIS | 1990年 / 59卷 / 03期
关键词
D O I
10.1016/0304-5102(90)85103-O
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
The complex [Ru(saloph)Cl2] (saloph = bis(salicylaldehyde-o-phenyl-enediimine) catalyses the oxidative carbonylation of cyclohexylamine in ethanol medium to cyclohexylurethane selectively at 160 °C and CO + O2 (1:0.50) pressure of 21 atm. A turnover number of 30 mol per mol catalyst per hour was observed in this reaction. The rate of oxidative carbonylation of cyclohexylamine measured at 160 °C in the range 7-21 atm is first order with respect to catalyst, cyclohexylamine and dissolved CO concentrations and one-half order with respect to dissolved O2 concentration. The effect of temperature on the rate of oxidative carbonylation was studied in the temperature range 150-170 °C and the activation energy evaluated as 21.0 kcal mol-. © 1990.
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页码:303 / 309
页数:7
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