Nucleophile-directed selectivity towards linear carbonates in the niobium pentaethoxide-catalysed cycloaddition of CO2 and propylene oxide

被引：55

作者：

Dutta, Barnali ^{[1
]}

Sofack-Kreutzer, Julien ^{[2
]}

Ghani, Amylia A. ^{[1
,2
]}

D'Elia, Valerio ^{[2
]}

Pelletier, Jeremie D. A. ^{[2
]}

Cokoja, Mirza ^{[1
]}

Kuehn, Fritz E. ^{[1
]}

Basset, Jean-Marie ^{[2
]}

机构：

[1] Tech Univ Munich, Catalysis Res Ctr, Chair Inorgan Chem Mol Catalysis, D-85747 Garching, Germany

[2] King Abdullah Univ Sci & Technol, KAUST Catalysis Ctr, Thuwal 23955, Saudi Arabia

来源：

CATALYSIS SCIENCE & TECHNOLOGY | 2014年 / 4卷 / 06期

关键词：

CYCLIC CARBONATES; ORGANIC CARBONATES; MILD CONDITIONS; ETHYLENE CARBONATE; COMPLEXES; EPOXIDES; DIOXIDE; SALEN; FIXATION; 4-(N; N-DIMETHYLAMINO)PYRIDINE;

D O I：

10.1039/c4cy00003j

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Homoleptic Nb-complexes combined with selected organic nucleophiles generate very active catalytic systems for the cycloaddition of propylene oxide and CO2 under ambient conditions. An unprecedented reaction pathway towards an acyclic organic carbonate is observed when extending the study to [Nb(OEt)(5)] in combination with 4-dimethylamino-pyridine (DMAP) or tetra-n-butylammonium bromide (TBAB). Mechanistic insights of the reaction are provided based on experimental and spectroscopic evidences.

引用

页码：1534 / 1538

页数：5

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