scholarly journals Samarium(II)-Mediated Pinacol Coupling in Water: Occurrence of Unexpected Disproportionation and Action of Low-Valent Samarium as an Active Species.

ChemInform ◽  
2003 ◽  
Vol 34 (32) ◽  
Author(s):  
Satoru Matsukawa ◽  
Yumi Hinakubo
Keyword(s):  
Active Species ◽  
Pinacol Coupling ◽  
Low Valent

scholarly journals Pinacol Coupling of Aromatic Aldehydes using La-Ticl4in CH3COOEt under Ultrasound Irradiation

2006 ◽  
Vol 3 (4) ◽  
pp. 230-235
Author(s):  
Ji-Tai Li ◽  
Xue-Li Sun ◽  
Zhi-Ping Lin ◽  
Tong-Shuang Li
Keyword(s):  
Ethyl Acetate ◽  
Titanium Tetrachloride ◽  
Aromatic Aldehydes ◽  
Ultrasound Irradiation ◽  
Titanium Complex ◽  
Pinacol Coupling ◽  
Low Valent

Titanium tetrachloride can be reduced by lanthanum filings to the corresponding low valent titanium complex, which can induce some aromatic aldehydes to the corresponding pinacols in 28%-97% yields within 10-50 min in ethyl acetate at r.t. under ultrasound irradiation.

Selective synthetic methods using vanadium-mediated redox reactions

2005 ◽  
Vol 77 (9) ◽  
pp. 1539-1557 ◽  
Author(s):  
Toshikazu Hirao
Keyword(s):  
Lewis Acids ◽  
Redox Reactions ◽  
Radical Reaction ◽  
Redox System ◽  
Synthetic Methods ◽  
Pinacol Coupling ◽  
Oxidative Transformations ◽  
Low Valent

Oxovanadium(V) compounds serve as Lewis acids with oxidation capability and induce one-electron oxidative transformations of organosilicons, organotins, organoaluminums, organoborons, organozincs, and/or their ate complexes. Low-valent vanadium-catalyzed stereoselective reductive transformations, including dehalogenation, pinacol coupling, and the related radical reaction, have been developed by constructing a multicomponent redox system in combination with a coreductant and an additive.

scholarly journals Structural Studies of the Low-Valent Titanium “Solution”:  What Goes on in the Pinacol Coupling Reaction?  [J. Am. Chem. Soc.2001,123, 1503−1504]. 

2001 ◽  
Vol 123 (20) ◽  
pp. 4869-4869 ◽  
Author(s):  
Yuko Hashimoto ◽  
Utako Mizuno ◽  
Hideki Matsuoka ◽  
Takafumi Miyahara ◽  
Masahiro Takakura ◽  
...  
Keyword(s):  
Coupling Reaction ◽  
Structural Studies ◽  
Pinacol Coupling ◽  
Low Valent

Isolation and Crystal Structure of the Proposed Low-Valent Active Species in the H2Activation Catalytic Cycle

2013 ◽  
Vol 2013 (22-23) ◽  
pp. 3978-3986 ◽  
Author(s):  
Daisuke Inoki ◽  
Takahiro Matsumoto ◽  
Hidetaka Nakai ◽  
Seiji Ogo
Keyword(s):  
Crystal Structure ◽  
Active Species ◽  
Catalytic Cycle ◽  
Low Valent
Sign in / Sign up

Export Citation Format

Share Document