Pinacol coupling of aromatic aldehydes catalysed by a titanocene complex: a transition metal catalysed radical reaction

1997 ◽  
pp. 457-458 ◽  
Author(s):  
Andreas Gansäuer
Keyword(s):  
Transition Metal ◽  
Radical Reaction ◽  
Aromatic Aldehydes ◽  
Pinacol Coupling

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.

Magnesium-Induced Pinacol Coupling of Aromatic Aldehydes and Ketones in Water under Ultrasound.

ChemInform ◽  
2004 ◽  
Vol 35 (17) ◽  
Author(s):  
Ji-Tai Li ◽  
Yan-Jiang Bian ◽  
Shu-Ming Liu ◽  
Tong-Shuang Li
Keyword(s):  
Aromatic Aldehydes ◽  
Pinacol Coupling ◽  
Aldehydes And Ketones

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.

Asymmetric pinacol coupling of aromatic aldehydes catalyzed by TiCl4(THF)2-Zn/chiral diamines

2010 ◽  
Vol 21 (10) ◽  
pp. 1369-1372 ◽  
Author(s):  
You-Gui Li ◽  
Chang-Sheng Jiang ◽  
Qing-Shan Tian ◽  
Yu-Ping Ke ◽  
Tian-Pa You
Keyword(s):  
Aromatic Aldehydes ◽  
Pinacol Coupling ◽  
Chiral Diamines

Highlymeso-Diastereoselective Pinacol Coupling of Aromatic Aldehydes Mediated by Al Powder/Copper Sulfate in Water

2008 ◽  
Vol 38 (19) ◽  
pp. 3243-3250 ◽  
Author(s):  
Yoshiharu Mitoma ◽  
Iwao Hashimoto ◽  
Cristian Simion ◽  
Masashi Tashiro ◽  
Naoyoshi Egashira
Keyword(s):  
Copper Sulfate ◽  
Aromatic Aldehydes ◽  
Pinacol Coupling ◽  
Al Powder

Pinacol Coupling Reaction of Aromatic Aldehydes Mediated by Zn in Acid Aqueous Media Under Ultrasound Irradiation

2004 ◽  
Vol 34 (6) ◽  
pp. 993-1000 ◽  
Author(s):  
Jin‐Hui Yang ◽  
Ji‐Tai Li ◽  
Jun‐Ling Zhao ◽  
Tong‐Shuang Li
Keyword(s):  
Aqueous Media ◽  
Coupling Reaction ◽  
Aromatic Aldehydes ◽  
Ultrasound Irradiation ◽  
Pinacol Coupling

Magnesium‐Induced Pinacol Coupling of Aromatic Aldehydes and Ketones Under Ultrasound Irradiation

2005 ◽  
Vol 35 (10) ◽  
pp. 1419-1424 ◽  
Author(s):  
Jian‐Sen Wang ◽  
Ji‐Tai Li ◽  
Zhi‐Ping Lin ◽  
Tong‐Shuang Li
Keyword(s):  
Aromatic Aldehydes ◽  
Ultrasound Irradiation ◽  
Pinacol Coupling ◽  
Aldehydes And Ketones
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