cas 4388-07-2, 4,4'-Dimethyl-1,1'-biphenyl-2,2',5,5'-tetraone | Articles data ｜lookchem

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4388-07-2

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Substituent effects in the oxidation of 2-alkyl-1,4-dialkoxybenzenes with ceric ammonium nitrate
Increased steric size of alkyl groups and the presence of coordinating atoms on alkoxy groups have both been found to contribute to decreasing yields of diquinones upon reaction of 2-alkyl-1,4-dialkoxybenzenes with CAN. The overall hydrophilicity of the substrates does not appear to be a significant factor in determining the diquinone yield for these reactions.
Love, Brian E.,Simmons, Alexander L.
p. 5712 - 5715
(2016/11/29)

Effects of reaction conditions on quinone/diquinone product ratios in the oxidation of 1,4-dimethoxybenzene derivatives with ceric ammonium nitrate
Proper choice of reaction conditions allows formation of either the quinone or corresponding diquinone as the major product upon treatment of 2-alkyl-1,4-dimethoxybenzenes with ceric ammonium nitrate.
Love, Brian E.,Duffy, Brian C.,Simmons, Alexander L.
supporting information
p. 1994 - 1997
(2014/04/03)

Improved synthesis of diquinones
Preparation of a series of substituted diquinones is reported. In most examples, inverse order of addition (addition of a dimethoxybenzene derivative to a CAN solution) has been found to produce higher yields of diquinones than the traditional protocol in which the oxidant is added to the arene. Georg Thieme Verlag Stuttgart.
Love, Brian E.,Bonner-Stewart, Jeffrey,Forrest, Lori A.
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p. 813 - 817
(2009/06/19)

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Chemical Properties

Boiling Point: 326.2°Cat760mmHg
Flash Point:136.5°C
Density: 1.363g/cm³
Refractive Index: 1.5190 (estimate)
PSA: 68.28000
LogP: 1.03540

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