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The formation of acyl anhydrides coupled to the reduction of a quinoidal system

✍ Scribed by M. Sprecher; D. Levy

Book ID
104240077
Publisher
Elsevier Science
Year
1969
Tongue
French
Weight
185 KB
Volume
10
Category
Article
ISSN
0040-4039

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✦ Synopsis

In a recent paper' Mustafa et al. reported the reaction of triphenylwsphine (I) with pbenzoquinonedibenzesulf~~de (a) in a dry benzene solution to yield a violet colored precipitate. Upon expo sure to the atmosphere, the color of the precipitate faded and triphenylphosphine oxide (2) was isolated from the reaction mixture. Though not quoted bv the

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2-Cyanopyrrole was found to form (2-pyrrolyhnetheoe)-(2-pyxmlyhnethyl)imine when treated witi lithium ahuninum hydride (LAH). followed by a mild work-up. A plausible mechanism of this reductive coupling was inferred from a series of experiments, including ~~AI-NMR, deuteration experiments, and the r