| US 7,511,160 B2 | ||
| Lactone derivative and its manufacturing method | ||
| Masayuki Kamiya, Niiza (Japan); Kiyohiko Tajima, Nagoya (Japan); Eiji Furuya, Kawasaki (Japan); and Hideo Hattori, Nagoya (Japan) | ||
| Assigned to Toyota Jidosha Kabushiki Kaisha, (Japan); and Genesis Research Institute, Inc., (Japan) | ||
| Filed on Sep. 14, 2005, as Appl. No. 11/225,175. | ||
| Claims priority of application No. 2004-270577 (JP), filed on Sep. 16, 2004. | ||
| Prior Publication US 2006/0058536 A1, Mar. 16, 2006 | ||
| Int. Cl. C07D 305/12 (2006.01) | ||
| U.S. Cl. 549—326 [549/323] | 3 Claims |
1. A method for manufacturing a lactone compound, wherein the lactone compound is at least one of the compounds expressed
by the following structural formulas (I) and (II)
 wherein the lactone compound is manufactured by reacting 2-deoxy-aldohexose with sulfuric acid.
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