scholarly journals Cooperative reaction chemistry derived from a borata-diene framework

2016 ◽  
Vol 52 (7) ◽  
pp. 1393-1396 ◽  
Author(s):  
Jiangang Yu ◽  
Gerald Kehr ◽  
Constantin G. Daniliuc ◽  
Gerhard Erker
Keyword(s):  
Carbon Monoxide ◽  
Lewis Acid ◽  
Hb C

A bifunctional frustrated BH−/B hydridoborate nucleophile/borane Lewis acid pair is prepared starting from a zwitterionic phoshonium borata-diene by a sequence of sequential protonation/hydride attachment, followed by hydroboration with Piers' borane [HB(C6F5)2]. The bifunctional product reduced carbon monoxide.

ChemInform Abstract: Novel Role of Carbon Monoxide as a Lewis Acid Catalyst for Friedel-Crafts Reaction.

ChemInform ◽  
2010 ◽  
Vol 32 (52) ◽  
pp. no-no
Author(s):  
Sensuke Ogoshi ◽  
Hiromitsu Nakashima ◽  
Kazumasa Shimonaka ◽  
Hideo Kurosawa
Keyword(s):  
Carbon Monoxide ◽  
Lewis Acid ◽  
Acid Catalyst ◽  
Lewis Acid Catalyst

Homogeneous CO Hydrogenation: Ligand Effects on the Lewis Acid-Assisted Reductive Coupling of Carbon Monoxide

2010 ◽  
Vol 29 (20) ◽  
pp. 4499-4516 ◽  
Author(s):  
Alexander J. M. Miller ◽  
Jay A. Labinger ◽  
John E. Bercaw
Keyword(s):  
Carbon Monoxide ◽  
Lewis Acid ◽  
Co Hydrogenation ◽  
Reductive Coupling ◽  
Ligand Effects

scholarly journals Novel Role of Carbon Monoxide as a Lewis Acid Catalyst for Friedel-Crafts Reaction  [J. Am. Chem. Soc.2001,123, 8626−8627]. 

2002 ◽  
Vol 124 (7) ◽  
pp. 1553-1553
Author(s):  
Sensuke Ogoshi ◽  
Hiromitsu Nakashima ◽  
Kazumasa Shimonaka ◽  
Hideo Kurosawa
Keyword(s):  
Carbon Monoxide ◽  
Lewis Acid ◽  
Acid Catalyst ◽  
Lewis Acid Catalyst

scholarly journals The use of Lewis acid AlCl3as a promoter in the Pd-complex catalytic system of the cyclohexene hydroethoxycarbonylation reaction

2021 ◽  
Vol 102 (2) ◽  
pp. 8-17
Author(s):  
N.Zh. Kudaibergenov ◽  
◽  
K.M. Shalmagambetov ◽  
A. Vavasori ◽  
G.Zh. Zhaksylykova ◽  
...  
Keyword(s):  
Carbon Monoxide ◽  
Catalytic System ◽  
Lewis Acid ◽  
Product Yield ◽  
Molar Ratio ◽  
High Catalytic Activity ◽  
Low Carbon ◽  
Component System ◽  
Acid Gas ◽  
Cyclohexane Carboxylic Acid

This paper presents the results of detailed studies of the possibility of using Lewis acid AlCl3as a promoter of the catalytic three-component system PdCl2(PPh3)2–PPh3–AlCl3in the hydroethoxycarbonylation reaction of cyclohexene at low carbon monoxide pressures (2.5 MPa). As a result a high catalytic activity of the three-component system was established and the reaction proceeds regioselectively with the formation of ethyl ether of cyclohexanecarboxylic acid. The optimal conditions of the process have been elaborated (molar ratio of the starting reagents [Cyclohexene]:[Ethanol] = 1:1; molar ratio of the components of the catalytic system = =[PdCl2(PPh3)2]:[PPh3]:[AlCl3] = 1:6:9; carbon monoxide pressure PCO=2.5MPa; process temperature T=120°C and reaction time τ= 5 h) at which the target product yield reaches 80.7%. To identify the obtained ethyl ester of cyclohexane carboxylic acid gas chromatographic analysis and mass-and IR-spectra were carried out. Based on the data obtained, a possible mechanism of the reaction route of cyclohexene carbonylation with carbon monoxide and ethanol in the presence of the three-component system PdCl2(PPh3)2–PPh3–AlCl3is pro-posed and discussed.

Novel Role of Carbon Monoxide as a Lewis Acid Catalyst for Friedel−Crafts Reaction

2001 ◽  
Vol 123 (35) ◽  
pp. 8626-8627 ◽  
Author(s):  
Sensuke Ogoshi ◽  
Hiromitsu Nakashima ◽  
Kazumasa Shimonaka ◽  
Hideo Kurosawa
Keyword(s):  
Carbon Monoxide ◽  
Lewis Acid ◽  
Acid Catalyst ◽  
Lewis Acid Catalyst

Adsorption of carbon monoxide on Lewis acid sites of alumina

1991 ◽  
Vol 43 (2) ◽  
pp. 447-452 ◽  
Author(s):  
S. Ishida ◽  
S. Imamura ◽  
Y. Fujimura
Keyword(s):  
Carbon Monoxide ◽  
Lewis Acid ◽  
Acid Sites ◽  
Lewis Acid Sites

Lewis acid catalysis: catalytic hydroboration of alkynes initiated by Piers' borane

2016 ◽  
Vol 52 (72) ◽  
pp. 10830-10833 ◽  
Author(s):  
Mirco Fleige ◽  
Juri Möbus ◽  
Thorsten vom Stein ◽  
Frank Glorius ◽  
Douglas W. Stephan
Keyword(s):  
Lewis Acid ◽  
Acid Catalysis ◽  
Lewis Acid Catalysis ◽  
Boronic Esters ◽  
Internal Alkynes ◽  
Hb C

Terminal and internal alkynes are efficiently hydroborated to (E)-alkenyl pinacol boronic esters with excellent yields and selectivities using Piers' borane, (HB(C6F5)2) as a pre-catalyst for the dissymmetrically gem-diborylated catalyst of the form RCH2CR′(Bpin)(B(C6F5)2).

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