Organic compounds -- part of the class 532-570 series – Organic compounds – Oxygen containing
Reexamination Certificate
2006-03-24
2008-11-04
Jiang, Shaojia Anna (Department: 1621)
Organic compounds -- part of the class 532-570 series
Organic compounds
Oxygen containing
C568S755000
Reexamination Certificate
active
07446235
ABSTRACT:
A method for reducing contaminants during synthesis of pentachlorophenol includes providing a phenol-based starting material and a catalyst, which form a reaction mixture. A chlorine flow is introduced so that it is in contact with the reaction mixture, and the starting material and chlorine are reacted via a temperature-programmed reaction. The chlorine flow is terminated at a predetermined temperature prior to an end of the temperature-programmed reaction and/or at a point where the yield of pentachlorophenol is less than about 95%.
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Savage Phillip E.
Yu Jianli
Cho Jennifer Y
Dierker & Associates P.C.
Jiang Shaojia Anna
The Regents of The University of Michigan
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