Efficient preparation of carbamates by Rh-catalysed oxidative carbonylation: unveiling the role of the oxidant
作者:Amaia Iturmendi、Manuel Iglesias、Julen Munárriz、Victor Polo、Jesús J. Pérez-Torrente、Luis A. Oro
DOI:10.1039/c6cc09133d
日期:——
The synthesis of a broad variety of carbamates from amines, alcohols and carbon monoxide has been achieved by means of a Rh-catalysed oxidative carbonylation reaction that uses Oxone as stoichiometric...
Synthesis of Amines, Carbamates and Amides by Multi-Step Continuous Flow Synthesis
作者:Cloudius R. Sagandira、Paul Watts
DOI:10.1002/ejoc.201700906
日期:2017.12.1
We report the continuous flow synthesis of acyl azides in various continuous flow systems and demonstrate that liquid–liquid separation may be incorporated to prepare anhydrous solutions of the acyl azide, which may be subsequently reacted with appropriate nucleophiles to prepare amines, carbamates and amides within a fully integrated multi-step process in high yields (> 80 %). Interesting effects
申请人:NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY
公开号:US20190185420A1
公开(公告)日:2019-06-20
A method of production of carbamic acid ester has a high yield and high selectivity and is superior in economy. The method of production of a carbamic acid ester includes reacting an amine, carbon dioxide, and an alkoxysilane compound in the presence of a catalyst containing a zinc compound or an alkali metal compound or in the presence of an ionic liquid. A carbamic acid ester is produced, for example by reacting aniline, carbon dioxide, and tetramethoxysilane at a temperature of 150 to 180° C. in the presence of zinc acetate and 2,2′-bipyridine.
Selenium-Catalyzed Oxidative Carbonylation of Aniline and Alcohols to <i>N</i>-Phenylcarbamates
作者:Xiaopeng Zhang、Huanzhi Jing、Guisheng Zhang
DOI:10.1080/00397910903134626
日期:2010.5.11
A facile one-pot, phosgene-free synthesis of N-phenylcarbamates is demonstrated. Catalyzed by selenium, oxidative carbonylation of aniline with alcohols in the presence of carbonmonoxide and oxygen affords the corresponding N-phenylcarbamates, mostly in fair to good yields. Selenium can be easily recovered because of its phase-transfer catalysis function.
Substituted polycyclic aryl and heteroaryl tertiary-heteroalkylamines useful for inhibiting cholesteryl ester transfer protein activity
申请人:G.D. Searle & Co.
公开号:US20030032644A1
公开(公告)日:2003-02-13
Substituted Polycyclic Aryl and Heteroaryl tetiary-leteroalkylamines Useful for Inhibiting Cholesteryl Ester Transfer Protein Activity Abstract The invention relates to substituted polycyclic aryl and heteroaryl tertiary-heteroalkylamine compounds useful as inhibitors of cholesteryl ester transfer protein (CETP; plasma lipid transfer protein-I) and compounds, compositions and methods for treating atherosclerosis and other coronary artery diseases.