In accordance with the invention, an industrial process for producing shogaols useful in the fields of for example foods, flavor, pharmaceutical products, qui-pharmaceutical products and cosmetics can be provided. The invention relates to novel intermediates represented by the following general formula and a process for producing shogaols from the intermediates. In accordance with the invention, shogaols can readily be produced, of which mass production has been difficult because shogaols have been produced only by the extraction process from a natural ginger. Intermediates; (in the formula (1), R1 represents hydrogen atom or methyl group; R2 represents optionally branched alkyl group with one to 18 carbon atoms; R3 and R4 each independently represents hydrogen atom, a lower alkyl group or a protective group of the phenolic hydroxyl group; A represents an alkylene group with one to 4 carbon atoms; and X represents benzenesulfonyl group or toluenesulfonyl group.)

Title
Process for producing shogaols and intermediates for the synthesis thereof
Application Number
10/514130
Publication Number
7049455 (B2)
Application Date
April 25, 2003
Publication Date
May 23, 2006
Inventor
Shuhei Yamaguchi
Tsukuba
JP
Hisatoyo Kato
Tsukuba
JP
Agent
Sughrue Mion PLLC
Assignee
Toagosei
JP
IPC
C07C 303/00
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