Hydro quinone diacetate

Semi- carbazone Oxime Hydro- quinone DIacetate of hydro-quinone Thiele acetylation product Other Derivatives... 

T. C. Tranter (36) has studied the binary copolymers based on hexamethylene diamine and -phenylene dipropionic, 3-(/>-carboxy-methyl)phenyl-butyric, 2-(/>-carbomethoxy)phenylpropionic, hydro-quinone diacetic, terephthalic, adipic, or sebacic acids. In spite of the fact that only the copolymers of hexamethylene diamine with/>-phenylene dipropionic and with 2-(/>-carbomethoxy)phenylpropionic acids show a linear softening point composition curve, Tranter claims for isomorphism in the copolymers of all the systems. In fact, their X-ray examination shows that they behave in the same basic manner, the second component dissolving in the lattice of the first until a certain critical concentration is reached, where the lattice structure changes quite abruptly to that of the second component. 

Preparation by Fries rearrangement of 2-bromo-hydro-quinone diacetate with aluminium chloride without solvent between 160° and 180° (66%) [1986], (25%) [1987]. 

The extraction of Ce, Eu, and Pa-Es was investigated in PEG-2000/ K2COy ABSs [18,19,22]. At an extractant concentration of 0.02 M, XO, AC, hydroxyphenylimino-N,N -diacetic acid (OPIDA), and MTB are the best among the dyes studied in Ref 19 for the extraction of the trivalent elements (Table 5), while HEDPA, nitrilotriphosphonic acid (NTP), hydro-quinone-complexone (HMIDA), hydroquinoneiminodimethylphosphonic... 

Carbonyl Reduction/ " Quinones are reduced to hydro-quinones by Zn/AcOH at reflux. " Incorporation of AC2O into the reaction mixture gives the respective diacetate. Under milder conditions (rt), the intermediate y-hydroxycyclohexenone may be intercepted in surprisingly high yield (72-90%). ... 

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See also in sourсe #XX -- [ ]

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