METHOD OF PRODUCING 1-(2-t-BUTYL CYCLOHEXYLOXY)-2-ALKANOL

Title:

METHOD OF PRODUCING 1-(2-t-BUTYL CYCLOHEXYLOXY)-2-ALKANOL

Document Type and Number:

WIPO Patent Application WO/2013/099859

Kind Code:

A1

Abstract:

The present invention relates to [1] a method of producing 1-(2-t-butyl cyclohexyloxy)-2-alkanol involving a step for adjusting to 7.5-10.0 the pH of, and hydrogenating, a raw material mixture containing 1-(2-t-butyl phenyloxy)-2-alkanol represented by formula (1) in the presence of (A) a palladium catalyst and (B) a metal catalyst containing one or more elements selected from ruthenium, rhodium, platinum and nickel, and further relates to [2] a perfume composition containing 1-(2-t-butyl cyclohexyloxy)-2-alkanol obtained by said method. The present invention provides an efficient method of producing 1-(2-t-butyl cyclohexyloxy)-2-alkanol which has a high trans-isomer content and which, as a perfume material, has a strong amber or wood fragrance and excellent persistence of aroma. (In the formula, R1 is a methyl group or an ethyl group.)

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Inventors:

ARAI TSUBASA (JP)
KOTACHI SHINJI (JP)
ATAKA YOSHIHARU (JP)

Application Number:

PCT/JP2012/083456

Publication Date:

July 04, 2013

Filing Date:

December 25, 2012

Export Citation:

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Assignee:

KAO CORP (JP)

International Classes:

C07C41/20; B01J23/46; C07C43/196; C11B9/00; C07B61/00

Foreign References:

JPH04217937A	1992-08-07
JPH04327553A	1992-11-17
JPH06263677A	1994-09-20
JPH04217937A	1992-08-07
JPH04327553A	1992-11-17
JPH06263677A	1994-09-20

Other References:

MARGOT, CHRISTIAN ET AL.: "Amber-woody scent: Alcohols with divergent structure present common olfactory characteristics and sharp enantiomer differentiation", HELVETICA CHIMICA ACTA, vol. 87, no. 10, 2004, pages 2662 - 2684, XP055073512
See also references of EP 2799417A4

Attorney, Agent or Firm:

OHTANI, Tamotsu et al. (JP)
Tamotsu Otani (JP)

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Claims:

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