Efficient and convenient epoxidation of alkenes to epoxides with H2O2 catalyzed by Co(OAc)2 in ionic liquid [C12py][PF6]
作者:Yu-Lin Hu、Yi-Wen Liu、De-Jiang Li
DOI:10.1007/s13738-015-0695-8
日期:2015.12
A simple, efficient, and eco-friendly procedure for the epoxidation of alkenes to epoxides with H2O2 catalyzed by Co(OAc)2 in ionic liquid [C12py][PF6] has been developed. The reactions were carried out with alkene, Co(OAc)2 (0.1 mmol), [C12py][PF6] (10 mL), and H2O2 (30 %, 11 mmol) at room temperature for 2–6 h. This atom-economical protocol affords the target products in good to high yields (88–98 %). The products can be separated by a simple extraction with organic solvent, and the catalytic system can be recycled and reused without loss of catalytic activity. A simple, efficient, and eco-friendly procedure for the epoxidation of alkenes to epoxides with H2O2 catalyzed by Co(OAc)2 in ionic liquid [C12py][PF6] has been developed.
[EN] VINYL MONOMERS HAVING CHELATING FUNCTIONALITY<br/>[FR] VINYLE MONOMÈRES AYANT UNE FONCTIONNALITÉ CHÉLATANTE
申请人:DOW GLOBAL TECHNOLOGIES LLC
公开号:WO2013066927A1
公开(公告)日:2013-05-10
The present invention provides novel polymerizable monomers having chelating functionality and processes to make them. In particular, the novel monomers are ethylenically unsaturated aminocarboxylates and are prepared by reacting ethylenediamine triacetic acid or its salt with an ethylenically unsaturated monomer. The ethyleneically unsaturated monomer may be a polymerizable vinyl monomer selected from (o-, p-, m-)DVBMO, allyl glycidyl ether, and glycidyl (meth)acrylate.
[EN] ETHYLENICALLY UNSATURATED MONOMERS HAVING CHELATING FUNCTIONALITY<br/>[FR] MONOMÈRES À INSATURATION ÉTHYLÉNIQUE AYANT UNE FONCTIONNALITÉ CHÉLATANTE
申请人:DOW GLOBAL TECHNOLOGIES LLC
公开号:WO2013066904A1
公开(公告)日:2013-05-10
The present invention provides novel polymerizable monomers having chelating functionality and processes to make them. In particular, the novel monomers are vinyl aminocarboxylates and are prepared by reacting iminodiacetic acid, iminodisuccinic acid, or a salt thereof, and a vinyl epoxy benzene monomer.
A Hafnium-Based Metal–Organic Framework as a Nature-Inspired Tandem Reaction Catalyst
作者:Hudson Beyzavi、Nicolaas A. Vermeulen、Ashlee J. Howarth、Samat Tussupbayev、Aaron B. League、Neil M. Schweitzer、James R. Gallagher、Ana E. Platero-Prats、Nema Hafezi、Amy A. Sarjeant、Jeffrey T. Miller、Karena W. Chapman、J. Fraser Stoddart、Christopher J. Cramer、Joseph T. Hupp、Omar K. Farha
DOI:10.1021/jacs.5b08440
日期:2015.10.28
Tandem catalytic systems, often inspired by biological systems, offer many advantages in the formation of highly functionalized small molecules. Herein, a new metal-organic framework (MOF) with porphyrinic struts and Hf6 nodes is reported. This MOF demonstrates catalytic efficacy in the tandem oxidation and functionalization of styrene utilizing molecular oxygen as a terminal oxidant. The product,
1,2-Bis(trifluoromethylthiolation) of Aromatic Epoxides with AgSCF<sub>3</sub>
作者:Yin-Li Liu、Feng-Ling Qing、Xiu-Hua Xu
DOI:10.1002/ejoc.201901836
日期:2020.2.28
An unprecedented transformation of aromatic epoxides to 1,2‐bis(trifluoromethylthiolated) products was reported. This reaction proceeded through the tandem ring‐opening and deoxytrifluoromethylthiolation processes, affording the target products in moderate to high yields.