Low-Pressure Oxidative Carbonylation of Aniline with Pd/C and Ag-Pd/C

机译：Pd / C和Ag-Pd / C的苯胺低压氧化羰基化

获取原文

获取原文并翻译 | 示例

页面导航

摘要
著录项
相似文献
相关主题

摘要

Extensive carbonylation catalyst screening studies show that oxidative carbonylation provides a low-pressure pathway for isocyanate synthesis without the use of highly toxic phosgene. Formation of diphenyl urea takes place even at low pressures of 0.101 MPa and at 373 K; formation of methyl N-phenyl carbamate can also occur at 0.101 MPa and 438 K from methanol, aniline, CO, and O_2 over Pd/C and Ag-Pd/C with NaI as a promoter. Diphenyl urea formation at 373 K and methyl N-phenyl carbamate formation at 438 K suggest that aniline dehydrogenation occurs at a lower temperature compared to alcohol dehydrogenation. Absence of Pd in the reactant/product solution suggests that the carbonylation reaction occurs on the surface of the Pd catalyst. High yields of carbamate (82%) obtained during low-pressure reaction studies demonstrate that the Pd-catalyzed oxidative carbonylation is economically viable.

机译：广泛的羰基化催化剂筛选研究表明，氧化羰基化为异氰酸酯合成提供了一种低压途径，而无需使用高毒性的光气。即使在0.101 MPa的低压和373 K的压力下，也会发生二苯脲的形成。在NaCl促进下，在Pd / C和Ag-Pd / C上由甲醇，苯胺，CO和O_2在0.101 MPa和438 K下也可能形成N-苯基氨基甲酸甲酯。与乙醇脱氢相比，在373 K下形成二苯脲和在438 K下形成N-苯基氨基甲酸甲酯，表明苯胺脱氢发生在较低的温度下。反应物/产物溶液中不存在Pd表明羰基化反应发生在Pd催化剂的表面上。在低压反应研究中获得高产率的氨基甲酸酯（82％）表明，Pd催化的氧化羰基化在经济上是可行的。

著录项

来源
《Conference on Green Engineering, null》||p.136-148|共13页
会议地点
作者
Steven S. C. Chuang; Pisanu Toochinda; Mahesh V. Konduru;
展开▼
作者单位

Department of Chemical Engineering, The University of Akron, Akron OH 44325-3906;

展开▼
会议组织
原文格式 PDF
正文语种 eng
中图分类环境保护管理;
关键词

相似文献

外文文献
中文文献
专利

1. Formation of palladium oxides by mechanochemical reaction on Pd and Ag-Pd alloy contacts [J] . Hasegawa M., Sawa K. IEEE Transactions on Components, Hybrids, and Manufacturing Technology . 1990,第1期

机译：通过机械化学反应在Pd和Ag-Pd合金触点上形成钯氧化物
2. Substituent Effect on Aniline Carbonylation Reaction in the Presence of the PdCl2/Fe/I2/Py Catalytic System [J] . M. Karpinska, P. Baran, J. Skupinska Polish Journal of Chemistry . 2008,第5期

机译：PdCl2 / Fe / I2 / Py催化体系对苯胺羰基化反应的取代作用
3. Non-faradaic catalysis: the case of CO oxidation over Ag-pd alloy electrode in a solid oxide electrolyte cell [J] . T.I.Politova, V.V.Galvita, V.D.Belyaev Catalysis Letters . 1997,第1期

机译：非法拉第催化：固体氧化物电解质电池中Ag-pd合金电极上CO氧化的情况
4. Formation of palladium-oxides by mechanochemical reaction on Pd and Ag-Pd alloy contacts [C] . Hasegawa, M., Sawa, Electrical Contacts, 1989., Proceedings of the Thirty Fifth Meeting of the IEEE Holm Conference on . 1989

机译：通过机械化学反应在Pd和Ag-Pd合金触点上形成钯氧化物
5. The chemical oxidation of aniline in buffers: Oligoaniline intermediates in the aniline-peroxydisulfate system. [D] . Beck, Erling. 2009

机译：缓冲液中苯胺的化学氧化：苯胺-过二硫酸盐体系中的低聚苯胺中间体。
6. Continuous‐Flow Pd‐Catalyzed Carbonylation of Aryl Chlorides with Carbon Monoxide at Elevated Temperature and Pressure [O] . Alejandro Mata, Dr. Christopher A. Hone, Dr. Bernhard Gutmann, -1

机译：在升高的温度和压力下用一氧化碳对钯进行连续流Pd催化的羰基化羰基化反应
7. Pd Nanoparticles and Mixture of CO2/CO/O2 Applied in the Carbonylation of Aniline [O] . Dominik Madej, Adrian Konopko, Piotr Piotrowski, 2020

机译：Pd纳米粒子和CO 2 / CO / O 2的混合物施用于苯胺的羰基化
8. Electrochemistry of Anilines. Part 1. Oxidation of 2,6-DI-tert-Butyl-Anilines to Radical Cations; General Considerations, Electroanalytical Experiments and Spectroscopy [R] . Speiser, B., Rieker, A., Pons, S. 1984

机译：苯胺的电化学。第1部分.2,6-DI-叔丁基苯胺氧化成自由基阳离子;一般考虑因素，电分析实验和光谱学

Low-Pressure Oxidative Carbonylation of Aniline with Pd/C and Ag-Pd/C

摘要

著录项

相似文献

相关主题

期刊订阅