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本发明涉及一种高效清洁的有机胺类化合物催化氧化羰化制二取代脲的方法。本发明中使用树脂类高聚物担载的金催化剂。在初始反应压力为 4.0-6.0MPa,反应温度为100-200℃。反应时间为1-10小时,使用一氧化碳和氧气混合气为氧化羰化剂,高效地催化氧化羰化有机胺制相应二 取代的脲。该催化剂的主要特点是具有高效、组成相对简单和金含量相对较低的同时,容易与反应体系分离、回收及重复使用。并且反应过程中不需要加入任何其它 溶剂。其中,二取代脲的的单程收率可达到48-85%,产品纯度≥99%。属清洁催化反应工艺,具有良好的工业应用前景。

邓友全,石峰. 催化氧化羰化胺制脲衍生物的方法. Cn1327977. 2003.

A novel reaction of cyclization of 1-dodecene to cyclododecane with high selectivity, especially under moderate pressure, is found in ethanol buffered chloroaluminate ionic liquids with easy separation of product duo to the immiscibility with ionic liquids.

★★★★☆ K. Qiao, Y. Deng / Tetrahedron Letters 44 (2003) 2191–2193.

A highly efficient catalyst system, palladium complex–ionic liquid, was developed for the carbonylation of amines to give carbamate or urea. The desired products could be precipitated by adding water into the resulting mixture and the catalyst system could be reused with slight loss of catalytic activity.

★★★☆☆ F. Shi et al. / Journal of Catalysis 219 (2003) 372–375.

SO3H-functionalized ionic liquids have been employed as an alternative reaction medium to conventional acid catalysts for oligomerization of various olefins, to produce branched olefin derivatives in high conversions and excellent selectivity. The ionic liquid plays a dual role as both catalyst and solvent, providing an efficient and reusable acidic catalyst system for the oligomerization of olefins.

★★★☆☆ Y. Gu et al. / Catalysis Communications 4 (2003) 597–601.

With equal molar ratio of benzene and hydrogen peroxide and without any additional volatile organic solvent, a green aqueous–ionic liquid biphasic hydroxylation of benzene to phenol with hydrogen peroxide as oxidant and metal dodecanesulfonate salts such as ferric tri(dodecanesulfonate) as catalyst was conducted with excellent selectivity and enhanced conversion.

★★★★☆ Jiajian Peng, Feng Shi, Yanlong Gu and Youquan Deng. Green Chemistry, 2003, 5, 224–226.

Methyl tert-butyl ether (MTBE), ethyl tert-butyl ether (ETBE), and isopropyl tert-butyl ether (IPTBE) have been synthesized for the first time over a non-acid ionic liquid as catalyst and dehydrator with high conversion ( > 90%) and selectivity ( > 90%) under mild conditions.

★★★★☆ Feng Shi, Hai Xiong, Yanlong Gu, Shu Guo and Youquan Deng. CHEM. COMMUN. , 2003, 1054–1055.

Ferric hydroxide supported Au prepared with co-precipitation without heat treatment could be a very effective catalyst for selective CO oxidation in the presence of H2 at lower temperatures.

★★★★☆ Botao Qiao and Youquan Deng. CHEM. COMMUN. , 2003, 2192–2193.

★★★★★ Feng Shi, Youquan Deng,* Tianlong SiMa, Jiajian Peng, Yanlong Gu, and Botao Qiao. Angew. Chem. Int. Ed. 2003, 42, 3257–3260. ★★★★★