Synthesis of DL-Glutamic Acid from 1,1,1,5-Tetrachloropentane

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概要

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• DL-Glutamic acid has been synthesized from 1,1,1,5-tetrachloropentane. The process involves five steps through 1,1,1-trichloro-5-hydroxypentane (92%), 5,5,5-trichlorovaleric acid (94%), 5,5-dichloro-4-pentenoic acid (85%), α-chloroglutaric acid (82%), and DL-glutamic acid (87%). The over-all field from 1,1,1,5-tetrachloropentane to DL-glutamic acid was 52%.<BR>In the dehydrochlorination of 5,5,5-trichlorovaleric acid to 5,5-dichloro-4-pentenoic acid, rather weak Lewis acid catalysts, such as bismuth chloride and zinc chloride were found to give the best results.

• 公益社団法人 日本化学会の論文

著者

• Yamazaki Toshiaki

  Technical Research Laboratory Asahi Chemical Industry Co., Ltd.

関連論文

• Synthesis of DL-Glutamic Acid from 1,1,1,5-Tetrachloropentane

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