Invention Grant
US08450508B2 Method of retaining the quality of 2-methyl-3-(3,4-methylenedioxyphenyl)propanal and process for producing the same
有权
保持2-甲基-3-（3,4-亚甲二氧基苯基）丙醛质量的方法及其制备方法
- Patent Title: Method of retaining the quality of 2-methyl-3-(3,4-methylenedioxyphenyl)propanal and process for producing the same
- Patent Title (中): 保持2-甲基-3-（3,4-亚甲二氧基苯基）丙醛质量的方法及其制备方法
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Application No.: US13654805Application Date: 2012-10-18
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Publication No.: US08450508B2Publication Date: 2013-05-28
- Inventor: Takashi Doi , Yoshihiro Yoshida , Eiji Sajiki , Satoru Fujitsu
- Applicant: Takashi Doi , Yoshihiro Yoshida , Eiji Sajiki , Satoru Fujitsu
- Applicant Address: JP Ube-shi
- Assignee: Ube Industries, Ltd.
- Current Assignee: Ube Industries, Ltd.
- Current Assignee Address: JP Ube-shi
- Agency: Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- Priority: JP2007-056686 20070307
- Main IPC: C07D317/44
- IPC: C07D317/44
Abstract:
The present invention relates to [1] a method for keeping a quality of 2-methyl-3-(3,4-methylenedioxyphenyl)propanal useful as a perfume, which comprises incorporating from 50 to 3000 ppm of 1-acetyl-3,4-methylenedioxybenzene in the 2-methyl-3-(3,4-methylenedioxyphenyl)propanal; [2] a process for producing 2-methyl-3-(3,4-methylenedioxyphenyl)propanal having a content range from 50 to 3000 ppm of 1-acetyl-3,4-methylenedioxybenzene; and [3]2-methyl-3-(3,4-methylenedioxyphenylpropanal having a content range from 50 to 3000 ppm of of 1-acetyl-3,4-methylenedioxybenzene.
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