Concept

Réaction de Diels-Alder

Publications associées (4)

Palladium-catalyzed arylative ring-opening reactions of norbornenols: entry to highly substituted cyclohexenes, quinolines, and tetrahydroquinolines

Palladium-catalyzed stereoselective arylative ring-opening reaction of norbornenol derivs. was studied. In presence of aryl bromides, corresponding cyclohexene derivs. were obtained in good yields. Meanwhile, reaction with bromoanilines yielded quinolines ...

Wiley-VCH Verlag GmbH & Co. KGaA2010

Chiral Bronsted Acid-Catalyzed Enantioselective Three-Component Povarov Reaction

Jieping Zhu, Hua Liu

The three-component Povarov reaction of aldehydes, anilines, and benzyl N-vinylcarbamate in the presence of 0.1 equiv of chiral phosphoric acid afforded cis-2,4-disubstituted tetrahydroquinolines, e.g. I, in good yields and excellent enantiomeric excesses. ...

2009

1-Ethoxy-3-trifluoromethyl-1,3-butadiene and congeners as Diels-Alder components opening an entry to functionalized (trifluoromethyl)benzenes and -pyridines

1-Ethoxy-3-trifluoromethyl-1,3-butadiene and its 2-bromo- and 2-phenyl-substituted derivs. have been prepd. by Wittig methylenation of the corresponding 4-ethoxy-1,1,1-trifluoro-3-buten-2-ones, which in turn are readily accessible from trifluoroacetic acid ...

2002

The Diels-Alder route to trifluoromethyl-substituted carbo- and heterocycles

Starting with 1,1,1-trifluoroacetone, 3-(trifluoromethyl)-1-(trimethylsilyloxy)-1,3-butadiene has been prepd. as a mixt. of (Z) and (E) isomers. The diene undergoes [4 + 2] cycloaddn. reactions with a variety of dienophiles affording trifluoromethyl-substi ...

1995

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