cas 67323-06-2, 4'-METHOXY-2'-NITROACETOPHENONE | Articles data ｜lookchem

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67323-06-2

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Palladium-catalyzed chelation-assisted aromatic C-H nitration: Regiospecific synthesis of nitroarenes free from the effect of the orientation rules
A palladium-catalyzed chelation-assisted ortho-nitration of aryl C-H bond is described. A range of azaarenes such as 2-arylquinoxalines, pyridines, quinoline, and pyrazoles were nitrated with excellent chemo- and regioselectivity. Using the O-methyl oximyl group as a removable directing group, the regiospecific synthesis of a variety of o-nitro aryl ketones was achieved starting from aryl ketones via a three-step process involving the Pd-catalyzed ipso-nitration of C-H bond as a key step. Mechanistic investigations support a silver-mediated radical mechanism involving Pd((II/III) and/or Pd(II/IV) catalytic cycles under oxidizing conditions.
Zhang, Wei,Lou, Shaojie,Liu, Yunkui,Xu, Zhenyuan
p. 5932 - 5948
(2013/07/26)

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Chemical Properties

Melting Point: 49-50 °C(Solv: ethyl ether (60-29-7); ligroine (8032-32-4))
Boiling Point: 352.133oC at 760 mmHg
Flash Point:173.057oC
Density: 1.245g/cm3
Vapor Pressure: 0mmHg at 25°C
PSA: 72.12000
LogP: 2.32920

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