Noble metal-free Cu(<scp>i</scp>)-anchored NHC-based MOF for highly recyclable fixation of CO<sub>2</sub> under RT and atmospheric pressure conditions
作者:Rajesh Das、C. M. Nagaraja
DOI:10.1039/d1gc01312b
日期:——
Noble metal-free, Cu(i) anchored N-heterocyclic carbene (NHC)-MOF exhibiting highly efficient fixation of CO2 into oxazolidinones, important building blocks for antibiotics at RT and atmospheric pressure conditions is presented.
无贵金属,Cu(i) 锚定的 N-杂环卡宾(NHC)-MOF 在室温和大气压条件下展现出高效固定 CO2 到噁唑烷酮中,这是抗生素的重要组成部分。
Base-catalysed direct introduction of carbon dioxide into acetylenic amines
作者:Mirco Costa、Gian Paolo Chiusoli、Marco Rizzardi
DOI:10.1039/cc9960001699
日期:——
N-Alkylprop-2-ynylamines readily react with carbon dioxide in the presence of catalytic amounts of strong organic bases and undergo intramolecular cyclization to 5-methylene-1.3-oxazolidin-2-ones in good yields.
Superbase catalysis of oxazolidin-2-one ring formation from carbon dioxide and prop-2-yn-1-amines under homogeneous or heterogenous conditions
作者:Mirco Costa、Gian Paolo Chiusoli、Davide Taffurelli、Giulio Dalmonego
DOI:10.1039/a800453f
日期:——
N-alkyl-substituted prop-2-yn-1-amines and N-tri-, tetra- and penta-alkyl-substituted guanidines or other strong organic bases assemble under the action of carbon dioxide to afford carbamates, from which methyleneoxazolidinones 2 are formed by ring closure. If alkyl or cycloalkyl chains of appropriate length are present in the guanidines the reaction readily occurs under heterogenous conditions without
Highly Efficient Fixation of Carbon Dioxide at RT and Atmospheric Pressure Conditions: Influence of Polar Functionality on Selective Capture and Conversion of CO<sub>2</sub>
作者:Rajesh Das、C. M. Nagaraja
DOI:10.1021/acs.inorgchem.0c00987
日期:2020.7.20
stronger interaction with CO2. Furthermore, the MOF-SO3Ag acts as an efficient heterogeneous catalyst for cyclic carboxylation of propargylic alcohols to generate α-alkylidene cyclic carbonates in >99% yield at mild conditions of RT and 1 bar CO2. More importantly, one-pot synthesis of oxazolidinones by a three-component reaction between CO2, propargylic alcohol, and primary amine has also been achieved
Palladium-catalysed sequential carboxylation–alkoxycarbonylation of acetylenic amines
作者:Alessia Bacchi、Gian Paolo Chiusoli、Mirco Costa、Bartolo Gabriele、Carlo Righi、Giuseppe Salerno
DOI:10.1039/a702822i
日期:——
Carbon dioxide and carbon monoxide react in sequence in an
intramolecular carboxyâcarbonylation reaction of
N-alkyl-substituted dialkylpropynylamines, under the catalytic action
of palladium iodideâpotassium iodide in methanol in the presence of
oxygen.