- Palladium-catalyzed site-selective C(sp3)-H arylation of phenylacetaldehydes
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We describe a Pd-catalyzed selective C-H arylation reaction of phenylacetaldehydes using l-valine as the transient directing group. This process showed a broad substrate scope and excellent selectivity in which a ligand-controlled functionalization of the
- Gou, Bo-Bo,Liu, Hang-Fan,Chen, Jie,Zhou, Ling
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supporting information
p. 7084 - 7088
(2019/09/30)
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- Flow-vacuum pyrolysis of 2,5-diphenyl-4-methyloxazole
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The flow-vacuum pyrolysis of 2,5-diphenyl-4-methyloxazole (4) at 1000°C and 0.5 Torr afforded a complex reaction mixture containing: benzonitrile, diphenylmethane, 9,10-dimethylphenantrene, 9,10-dimethylantracene, fluorene, o-benzylbenzonitrile (major product, 20-22%), phenanthrene, anthracene, o,o′-dicyanodiphenyl, 9,10-anthraquinone, 2-methyl-4,5-diphenyloxazole and 1,1,2,2-tetraphenylethane. A radical- and carbene mechanism is suggested in order to rationalize the formation of the reaction products.
- Banciu, Mircea D.,Istrati, Daniela,Schiketanz, Iosif,Mihǎiescu, Dan,Drǎghici, Constantin,Malacea, Raluca
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p. 493 - 499
(2007/10/03)
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- Dramatic influence of nitrogen heterocycles on the activity of low-valent titanium reagent: An improved one-pot synthesis of phenanthrenes
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A novel low-valent titanium (LVT) induced one-pot synthesis of phenanthrenes (25-38% yield) from ortho-alkoxy aromatic aldehydes/ketones was reported by us earlier. Activity of LVT complex could be modulated rationally by using catalytic amount of pyridine. Use of this LVT-pyridine reagent system improved the yields of phenanthrenes (3) by two folds.
- Kadam,Nayak,Banerji
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p. 135 - 142
(2007/10/02)
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