JPS5527135A - Novel unsaturated ketone compound and its preparation - Google Patents

Novel unsaturated ketone compound and its preparation

Info

Publication number
JPS5527135A
JPS5527135A JP9920278A JP9920278A JPS5527135A JP S5527135 A JPS5527135 A JP S5527135A JP 9920278 A JP9920278 A JP 9920278A JP 9920278 A JP9920278 A JP 9920278A JP S5527135 A JPS5527135 A JP S5527135A
Authority
JP
Japan
Prior art keywords
formula
methyl
unsaturated ketone
ketone compound
preparation
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP9920278A
Other languages
Japanese (ja)
Other versions
JPS6029691B2 (en
Inventor
Toyohiko Kobayashi
Hiroshi Sugiyama
Haruki Tsuruta
Toshio Yoshida
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Takasago International Corp
Takasago Corp
Original Assignee
Takasago Perfumery Industry Co
Takasago Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Takasago Perfumery Industry Co, Takasago Corp filed Critical Takasago Perfumery Industry Co
Priority to JP9920278A priority Critical patent/JPS6029691B2/en
Publication of JPS5527135A publication Critical patent/JPS5527135A/en
Publication of JPS6029691B2 publication Critical patent/JPS6029691B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Fats And Perfumes (AREA)

Abstract

NEW MATERIAL:An unsaturated ketone compound of formula I: (R1 is methyl or ethyl group; R2 is H or methyl group; either of the 1- and the 2-positons has double bond in the dotted line).
EXAMPLE: 2-Methyl-3-isopropyl-2,5-heptadien-4-one.
USE: Useful as perfumes having a flowery flavor like green wood, usable for compounding various fragrances, and flavoring soaps due to the alkali resistance.
PROCESS: A diol of formula II is heated with dilute sulfuric acid, dehydrated and isomerized at about 60°C for about 5hr to give the compound of formula III among the compounds of formula I. The concentration of the sulfuric acid is 10W20%, preferably 15%.
COPYRIGHT: (C)1980,JPO&Japio
JP9920278A 1978-08-15 1978-08-15 Novel unsaturated ketone compound and method for producing the same Expired JPS6029691B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9920278A JPS6029691B2 (en) 1978-08-15 1978-08-15 Novel unsaturated ketone compound and method for producing the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9920278A JPS6029691B2 (en) 1978-08-15 1978-08-15 Novel unsaturated ketone compound and method for producing the same

Publications (2)

Publication Number Publication Date
JPS5527135A true JPS5527135A (en) 1980-02-27
JPS6029691B2 JPS6029691B2 (en) 1985-07-12

Family

ID=14241054

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9920278A Expired JPS6029691B2 (en) 1978-08-15 1978-08-15 Novel unsaturated ketone compound and method for producing the same

Country Status (1)

Country Link
JP (1) JPS6029691B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4465863A (en) * 1982-11-12 1984-08-14 International Flavors & Fragrances Inc. Branched C13 -alk-1-en-5-ones, use thereof in perfumery, process for preparing same and intermediates used in said process
JP2002003434A (en) * 2000-04-28 2002-01-09 Givaudan Sa 2-,5-,6-,7-,8-substituted oct-2-en-4-one

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4465863A (en) * 1982-11-12 1984-08-14 International Flavors & Fragrances Inc. Branched C13 -alk-1-en-5-ones, use thereof in perfumery, process for preparing same and intermediates used in said process
JP2002003434A (en) * 2000-04-28 2002-01-09 Givaudan Sa 2-,5-,6-,7-,8-substituted oct-2-en-4-one
US6723313B2 (en) * 2000-04-28 2004-04-20 Givaudan Sa 2-,5-,6-,7-,8-substituted oct-2-en-4-ones

Also Published As

Publication number Publication date
JPS6029691B2 (en) 1985-07-12

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