Organic compounds -- part of the class 532-570 series – Organic compounds – Oxygen containing
Reexamination Certificate
2006-12-12
2006-12-12
Witherspoon, Sikarl A. (Department: 1621)
Organic compounds -- part of the class 532-570 series
Organic compounds
Oxygen containing
C568S764000, C568S771000, C568S815000, C558S265000, C558S268000
Reexamination Certificate
active
07148386
ABSTRACT:
A process for the preparation of hydroquinone compounds comprising, reacting an aromatic hydroxy compound with an oxidizing agent in a biphasic solvent system. The reaction is carried out in the presence of a transition metal hydroxy phosphate catalyst to produce the corresponding hydroquinone compound.
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Ashtekar Sunil
Kumbhar Pramod
Mahalingam Rathinam Jothi
Thampi Jegadeesh
General Electric Company
Witherspoon Sikarl A.
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