Cross Metathesis on Olefin-Terminated Monolayers on Si(111) Using the Grubbs' Catalyst

Langmuir ◽  
2006 ◽  
Vol 22 (5) ◽  
pp. 2146-2155 ◽  
Author(s):  
Samrat Dutta ◽  
Mathew Perring ◽  
Stephen Barrett ◽  
Michael Mitchell ◽  
Paul J. A. Kenis ◽  
...  
Keyword(s):  
Grubbs Catalyst ◽  
Cross Metathesis

A facile new procedure for the deprotection of allyl ethers under mild conditions

2000 ◽  
Vol 78 (6) ◽  
pp. 838-845 ◽  
Author(s):  
Yun-Jin Hu ◽  
Romyr Dominique ◽  
Sanjoy Kumar Das ◽  
René Roy
Keyword(s):  
Key Words ◽  
Catalytic System ◽  
Olefin Metathesis ◽  
Allyl Ether ◽  
Metathesis Reaction ◽  
Grubbs Catalyst ◽  
Allyl Ethers ◽  
Mild Conditions ◽  
Cross Metathesis ◽  
Allylic Ethers

A novel isomerization of O-allyl glycosides into prop-1-enyl glycosides was observed instead of cross-metathesis during an olefin metathesis reaction using Grubbs' ruthenium benzylidene catalyst (Cy3P)2RuCl2=CHPh (1), N-allyltritylamine, and N,N-diisopropylethylamine as necessary auxiliary reagents. In the search for a better catalytic system, it has been found that dichlorotris(triphenylphosphine)ruthenium(II), [(C6H5)3P]3RuCl2, (2) was much more efficient for the isomerization of allylic ethers. The labile prop-1-enyl group was easily hydrolyzed using HgCl2-HgO and the hemiacetals (25-32) were isolated in excellent yields (ca. 90%).Key words: allyl ether, carbohydrate, Grubbs' catalyst, isomerization, metathesis, deprotection.

scholarly journals Designing liquid-crystalline gold nanoparticles via the olefin cross-metathesis reaction

2016 ◽  
Vol 20 (08n11) ◽  
pp. 1060-1064 ◽  
Author(s):  
Thanh Tung Nguyen ◽  
Thi Le Anh Nguyen ◽  
Robert Deschenaux
Keyword(s):  
Gold Nanoparticles ◽  
Liquid Crystalline ◽  
Second Generation ◽  
Metathesis Reaction ◽  
Grubbs Catalyst ◽  
Terminal Olefin ◽  
Organic Shell ◽  
Smectic A ◽  
Cross Metathesis ◽  
Liquid Crystalline Nanoparticles

Liquid-crystalline gold nanoparticles were prepared by grafting mesomorphic [Formula: see text],[Formula: see text]-unsaturated carbonyl olefins onto the organic shell of gold nanoparticles containing terminal olefin ligands by applying the olefin cross-metathesis. The latter reaction was performed under standard conditions using second-generation Grubbs catalyst. The title materials were found to be stable up to 200[Formula: see text] C and gave rise to the formation of smectic A phases in agreement with the structure and nature of the liquid-crystalline promoters. The olefin cross-metathesis proved to be a reaction of choice for the design of liquid-crystalline nanoparticles.

scholarly journals Cross-metathesis of vinylsilanes with olefins in the presence of Grubbs’ catalyst

2001 ◽  
Vol 42 (6) ◽  
pp. 1175-1178 ◽  
Author(s):  
Cezary Pietraszuk ◽  
Helmut Fischer ◽  
Małgorzata Kujawa ◽  
Bogdan Marciniec
Keyword(s):  
Grubbs Catalyst ◽  
Cross Metathesis

Cross-metathesis of vinyl aromatic heterocycles: comparison of Grubbs catalyst and Schrock catalyst

2002 ◽  
Vol 190 (1-2) ◽  
pp. 33-43 ◽  
Author(s):  
Tadashi Kawai ◽  
Yasue Shida ◽  
Hirohisa Yoshida ◽  
Jiro Abe ◽  
Tomokazu Iyoda
Keyword(s):  
Grubbs Catalyst ◽  
Aromatic Heterocycles ◽  
Cross Metathesis
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