Young, Walt DE. S.Rodgers, George F.USUS2704773 * May 5, 1951 Mar 22, 1955 Eastman Kodak Co Hydrogenated derivatives of phenyl-p-benzoquinoneUS2704773 * 1951年5月5日 1955年3月22日 Eastman Kodak Co Hydrogenated derivatives of phenyl-p-benzoquinone...
D. Veltwisch, K.-D. Asmus, On the reaction of methyl and phenyl radicals with p- benzoquinone in aqueous solution. , J.Chem. Soc., Perkin Trans. 2 (1982) 1147-1152.Veltwisch D, Asmus K-D (1982) On the reaction of methyl and phenyl radicals with p -benzoquinone in aqueous ...
Reaction of 1-phenyldiazoethane(1) with tetrachloro- p-benzoquinone(2) gave 1-alkoxy-4-ethenyloxy-tetrachlorobenzene(4). With tetrachloro- o-benzoquinone(5), 1 provided 1-alkoxy-2-ethenyloxy-tetrachlorobenzene(7) and tetrachlorobenzo-1,3-dioxolane(8). The mechanism and the effect of added ...
The dihedral angle between the quinone ring plane and the phenyl ring is 49.8 (2)°. The molecules are linked by C-H...X hydrogen bonding into bilayers which stack along the c axis; C...O distances range from 3.355 (4) to 3.631(5) A and the unique C...N distance is 3.427 (5...
SUBSTANCE: invention relates to method for preparing N-phenyl-p-benzoquinoneimines. Method is carried out by oxidation of the corresponding hydroxydiphenylamine in the presence of oxygen and catalyst based on the modified activated carbon. Catalyst is modified preliminary by removing surface oxides from...
The radical and cationic copolymerization of p-benzoquinone with phenyl acetylene are studied in bulk and in various solvents. The structures of the co-oligomers obtained ( M = 750–1550) are determined by physicochemical methods. The weight loss of polymer at 500°C is 24%....
The introduction of phenyl substituants into the p-benzoquinone molecule lowers the energy of the lowest singlet and triplet ππ * states. The lowest triplet states for 2-phenyl- and 2,6-diphenyl-l,4-benzoquinone are ππ * states. The lifetime of triplet aryl-substituted p-benzoquinones ...
The invention discloses a method for preparing p-benzoquinone by electrocatalytic oxidation of phenylamine. The method comprises the following steps of: preparing soft manganese mineral powder and dilute sulphuric acid into a solution; dipping phenylamine into the solution; oxidizing phenylamine by ...
N-phenylbenzoquinone-imine is prepared by oxidizing N-(4- hydroxyphenyl) aniline in a liquid, at least partially organic reaction medium, in the presence of a basic compound and, advantageously, a catalytically effective amount of at least one manganese, copper, cobalt and/or nickel compound; ...
Reaction of 2-Hydrazino-1-azaazulene with Diphenylnitrone: Unexpected Formation of Phenylimino-p-benzoquinone-N-oxideAbe, N.Matsuda, H.Fujii, H.Kakehi, A.HETEROCYCLES -SENDAI THEN TOKYO-