| US 7,531,067 B2 | ||
| Process for purification of 2-chloro-5-chloromethyl-1,3-thiazole | ||
| Toshikazu Oga, Takasago (Japan); and Toru Kofukuda, Takasago (Japan) | ||
| Assigned to Toyo Kasei Kogyo Company, Limited, Osaka (Japan); and Sumitomo Chemical Company, Limited, Tokyo (Japan) | ||
| Appl. No. 10/593,464 PCT Filed Mar. 10, 2005, PCT No. PCT/JP2005/004181 § 371(c)(1), (2), (4) Date Oct. 25, 2006, PCT Pub. No. WO2005/090321, PCT Pub. Date Sep. 29, 2005. |
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| Claims priority of application No. 2004-081810 (JP), filed on Mar. 22, 2004. | ||
| Prior Publication US 2007/0149785 A1, Jun. 28, 2007 | ||
| Int. Cl. B01D 3/34 (2006.01); C07D 277/32 (2006.01) | ||
| U.S. Cl. 203—63 [203/71; 548/202] | 12 Claims |
1. A process for purifying 2-chloro-5-chloromethyl-1,3-thiazole represented by the formula (I):
 treating a crude 2-chloro-5-chloromethyl-1,3-thiazole represented by the formula (I) with a lower alcohol, and then
distilling the treated 2-chloro-5-chloromethyl-1,3-thiazole.
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