Novel Pd/C-Catalyzed Redox Reactions between Aliphatic Secondary Alcohols and Ketones under Hydrogenation Conditions:  Application to H−D Exchange Reaction and the Mechanistic Study

2007 ◽  
Vol 72 (6) ◽  
pp. 2143-2150 ◽  
Author(s):  
Hiroyoshi Esaki ◽  
Rumi Ohtaki ◽  
Tomohiro Maegawa ◽  
Yasunari Monguchi ◽  
Hironao Sajiki
Keyword(s):  
Exchange Reaction ◽  
Redox Reactions ◽  
Mechanistic Study ◽  
Secondary Alcohols

Mechanisms of Electrochemical N2 Splitting by a Molybdenum Pincer Complex

2021 ◽  
Author(s):  
Quinton Bruch ◽  
Santanu Malakar ◽  
Alan Goldman ◽  
Alexander Miller
Keyword(s):  
Electrode Surface ◽  
Redox Reactions ◽  
Catalytic Reduction ◽  
Reaction Pathways ◽  
Bulk Solution ◽  
Mechanistic Study ◽  
Pincer Ligands ◽  
Computational Studies ◽  
Pincer Complex ◽  
Bond Scission

Molybdenum complexes supported by tridentate pincer ligands are exceptional catalysts for dinitrogen fixation using chemical reductants, but little is known about their prospects for electrochemical reduction of dinitrogen. The viability of electrochemical N2 binding and splitting by a molybdenum(III) pincer complex, (pyPNP)MoBr3 (pyPNP = 2,6-bis(tBu2PCH2)-C5H3N)), is established in this work, providing a foundation for a detailed mechanistic study of electrode-driven formation of the nitride complex (pyPNP)Mo(N)Br. Electrochemical kinetic analysis, optical and vibrational spectroelectrochemical monitoring, and computational studies point to two reaction pathways: in the “reaction layer” pathway, the molybdenum(III) precursor is reduced by 2e– and generates a bimetallic molybdenum(I) Mo2(-N2) species capable of N–N bond scission. In the “bulk solution” pathway the precursor is reduced by 3e– at the electrode surface to generate molybdenum(0) species that undergo chemical redox reactions via comproportionation in the bulk solution away from the electrode surface to generate the same bimetallic molybdenum(I) species capable of N2 cleavage. The comproportionation reactions reveal the surprising intermediacy of dimolybdenum(0) complex trans,trans-[(pyPNP)Mo(N2)2](-N2) in N2 splitting pathways. The same “over-reduced” molybdenum(0) species was also found to cleave N2 upon addition of lutidinium, an acid frequently used in catalytic reduction of dinitrogen.

Mechanistic Study on Aryl-Exchange Reaction of Diaryl-λ3-iodane with Aryl Iodide

2017 ◽  
Vol 83 (1) ◽  
pp. 289-295 ◽  
Author(s):  
Yui Masumoto ◽  
Kazunori Miyamoto ◽  
Takuto Iuchi ◽  
Masahito Ochiai ◽  
Keiichi Hirano ◽  
...  
Keyword(s):  
Exchange Reaction ◽  
Mechanistic Study ◽  
Aryl Iodide

A Unified Mechanism to Account for Manganese‐ or Ruthenium‐Catalyzed Nitrile α‐Olefinations by Primary or Secondary Alcohols: A DFT Mechanistic Study

2019 ◽  
Vol 25 (15) ◽  
pp. 3939-3949 ◽  
Author(s):  
Yu Lu ◽  
Ruihua Zhao ◽  
Jiandong Guo ◽  
Zheyuan Liu ◽  
Wasihun Menberu ◽  
...  
Keyword(s):  
Mechanistic Study ◽  
Secondary Alcohols

Substituent Effects in the Silylation of Secondary Alcohols: A Mechanistic Study

2018 ◽  
Vol 24 (56) ◽  
pp. 15052-15058 ◽  
Author(s):  
Marta Marin-Luna ◽  
Pascal Patschinski ◽  
Hendrik Zipse
Keyword(s):  
Substituent Effects ◽  
Mechanistic Study ◽  
Secondary Alcohols

scholarly journals Redox reactions of the FAD-containing apoptosis-inducing factor (AIF) with quinoidal xenobiotics: A mechanistic study

2011 ◽  
Vol 512 (2) ◽  
pp. 183-189 ◽  
Author(s):  
Lina Misevičienė ◽  
Žilvinas Anusevičius ◽  
Jonas Šarlauskas ◽  
Irina F. Sevrioukova ◽  
Narimantas Čėnas
Keyword(s):  
Redox Reactions ◽  
Mechanistic Study ◽  
Apoptosis Inducing Factor

H/D Exchange Reaction between Isobutane and Acidic USY Zeolite: A Mechanistic Study by Mass Spectrometry and in Situ NMR

2001 ◽  
Vol 204 (2) ◽  
pp. 460-465 ◽  
Author(s):  
Weiming Hua ◽  
Alain Sassi ◽  
Alain Goeppert ◽  
Francis Taulelle ◽  
Chantal Lorentz ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Exchange Reaction ◽  
Mechanistic Study ◽  
Zeolite A ◽  
Usy Zeolite ◽  
In Situ Nmr

scholarly journals Ligand Exchange Reaction on a Ru(II)–Pheox Complex as a Mechanistic Study of Catalytic Reactions

ACS Omega ◽  
2018 ◽  
Vol 3 (9) ◽  
pp. 11286-11289 ◽  
Author(s):  
Yoko Nakagawa ◽  
Yusuke Imokawa ◽  
Ikuhide Fujisawa ◽  
Naofumi Nakayama ◽  
Hitoshi Goto ◽  
...  
Keyword(s):  
Exchange Reaction ◽  
Ligand Exchange ◽  
Catalytic Reactions ◽  
Mechanistic Study ◽  
Ligand Exchange Reaction
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