Organic compounds -- part of the class 532-570 series – Organic compounds – Halogen containing
Reexamination Certificate
2008-10-10
2009-06-09
Parsa, Jafar (Department: 1621)
Organic compounds -- part of the class 532-570 series
Organic compounds
Halogen containing
C570S201000
Reexamination Certificate
active
07544847
ABSTRACT:
A method for producing 1,4-bis(dichloromethyl)tetrafluorobenzene is disclosed, which is achieved by reacting tetrafluoroterephthaldehyde, SOCl2and organic solvents. In the synthesis of 1,4-bis(dichloromethyl)-tetrafluorobenzene by adding formamides as catalyst, there are remarkable advantages which include shortening the reaction time; simplifying the synthesizing steps and raising the yield of the product.
REFERENCES:
Kiktuchi et al., Journal of the American Chemical Society, 126 (21), 6526-6527.
Ho Chan-Yuan
Lin Chun-Hsu
Lin Tsair-Feng
Wang Shieh-Jun
Bacon & Thomas PLLC
Chun-Shan Institute of Science and Technology Araments Bureau, M
Parsa Jafar
Yuan-Shin Materials Technology Corp.
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