ChemInform Abstract: REGIOSELECTIVITY AND STERIC COURSE OF LEWIS ACID-INDUCED RING ENLARGEMENT OF CYCLOHEXADIENE COMPLEXES WITH CARBON MONOXIDE

1985 ◽  
Vol 16 (22) ◽  
Author(s):  
P. EILBRACHT ◽  
R. JELITTE ◽  
L. WALZ
Keyword(s):  
Carbon Monoxide ◽  
Lewis Acid ◽  
Ring Enlargement

scholarly journals Lewis acid catalyzed annulation of spirocyclic donor–acceptor cyclopropanes with exo-heterocyclic olefins: access to highly functionalized bis-spirocyclopentane oxindole frameworks

2019 ◽  
Vol 55 (49) ◽  
pp. 7069-7072 ◽  
Author(s):  
Kuldeep Singh ◽  
Sourav Pramanik ◽  
Trevor A. Hamlin ◽  
Biplab Mondal ◽  
Dinabandhu Das ◽  
...  
Keyword(s):  
Lewis Acid ◽  
Ring Enlargement ◽  
Donor Acceptor ◽  
Acid Catalyzed

Oxindole-activated spiro-DAC is used as synthon to prepare complex bis-spirocyclopentane oxindole frameworks via ring-enlargement.

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

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.

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
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