Light-induced synthesis of unsymmetrical organic carbonates from alcohols, methanol and CO<sub>2</sub> under ambient conditions
作者:Sandhya Saini、Nand Kishor Gour、Shafiur Rehman Khan、Ramesh Chandra Deka、Suman L Jain
DOI:10.1039/d1cc05833a
日期:——
The present work describes the first visible light-assisted, metal-free and organic base 1,1,3,3-tetramethyl guanidine (TMG) mediated synthesis of unsymmetrical methyl aryl/alkyl carbonates from the reaction of alcohols, methanol, and CO2 in high to excellent yields under atmospheric pressure and ambient temperature conditions.
目前的工作描述了第一个可见光辅助、无金属和有机碱 1,1,3,3-四甲基胍 (TMG) 介导的由醇、甲醇和 CO 2的反应合成的不对称甲基芳基/碳酸烷基酯在大气压和环境温度条件下以高到极好的收率。
Divergent Synthesis of Isonitriles and Nitriles by Palladium-Catalyzed Benzylic Substitution with TMSCN
作者:Kento Asai、Koji Hirano、Masahiro Miura
DOI:10.1021/acs.joc.0c01861
日期:2020.10.2
Ligand-controlled palladium-catalyzed divergent synthesis of isonitriles and nitriles from benzylic carbonates and TMSCN has been developed. The BINAP- or DPEphos-ligated palladium catalyst selectively provides the corresponding benzylic isonitriles, whereas their regioisomers, benzylic nitriles, are formed exclusively under phosphine ligand-free conditions. Mechanistic studies reveal that isonitrile
ELEKTROCHEMISCHES VERFAHREN ZUR HERSTELLUNG VON ARYLALKYLCARBONATEN UND DIARYLCARBONATEN
申请人:Covestro Deutschland AG
公开号:EP3321250A1
公开(公告)日:2018-05-16
Es wird ein Verfahren zur elektrochemischen Herstellung von Arylalkylcarbonaten und Diarylcarbonaten beschrieben, bei dem aromatische Verbindungen anodisch mit Carbonaten umgesetzt werden sowie deren Verwendung zur Herstellung von Polycarbonat.