ChemInform Abstract: SUBSTITUENT EFFECTS IN HETEROGENEOUS CATALYSIS. IX. ADSORPTION STRENGTH AND REACTIVITY OF 4-SUBSTITUTED CYCLOHEXANONES IN PLATINUM METAL-CATALYZED HYDROGENATION

1983 ◽  
Vol 14 (25) ◽  
Author(s):  
T. CHIHARA ◽  
K. TANAKA
Keyword(s):  
Heterogeneous Catalysis ◽  
Substituent Effects ◽  
Platinum Metal ◽  
Metal Catalyzed

Chemistry of Unsymmetrical C1-Substituted Oxabenzonorbornadienes

2021 ◽  
Vol 17 ◽  
Author(s):  
Austin Pounder ◽  
Angel Ho ◽  
Matthew Macleod ◽  
William Tam
Keyword(s):  
Transition Metal ◽  
Metal Complexes ◽  
Transition Metal Complexes ◽  
Substituent Effects ◽  
Face Selectivity ◽  
Transition Metal Catalyzed ◽  
Catalyzed Reactions ◽  
Metal Catalyzed ◽  
Synthetic Intermediate

: Oxabenzonorbornadiene (OBD) is a useful synthetic intermediate which can be readily activated by transition metal complexes with great face selectivity due to its dual-faced nature and intrinsic angle strain on the alkene. To date, the understanding of transition-metal catalyzed reactions of OBD itself has burgeoned; however, this has not been the case for unsymmetrical OBDs. Throughout the development of these reactions, the nature of C1-substituent has proven to have a profound effect on both the reactivity and selectivity of the outcome of the reaction. Upon substitution, different modes of reactivity arise, contributing to the possibility of multiple stereo-, regio-, and in extreme cases, constitutional isomers which can provide unique means of constructing a variety of synthetically useful cyclic frameworks. To maximize selectivity, an understanding of bridgehead substituent effects is crucial. To that end, this review outlines hitherto reported examples of bridgehead substituent effects on the chemistry of unsymmetrical C1-substituted OBDs.

Advances in carbon nanotube-noble metal catalyzed organic transformations

2012 ◽  
Vol 1 (6) ◽  
pp. 515-539 ◽  
Author(s):  
Jubi John ◽  
Edmond Gravel ◽  
Irishi N.N. Namboothiri ◽  
Eric Doris
Keyword(s):  
Carbon Nanotube ◽  
Heterogeneous Catalysis ◽  
Noble Metal ◽  
Noble Metals ◽  
Review Article ◽  
Synthetic Chemistry ◽  
Organic Transformations ◽  
Supported Noble Metals ◽  
Metal Catalyzed ◽  
Palladium Silver

AbstractThis review article is dealing with heterogeneous catalysis applied to synthetic chemistry using various carbon nanotube-supported noble metals (e.g., ruthenium, rhodium, palladium, silver, osmium, iridium, platinum, and gold).

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