JPS5643221A - Preparation of 1,1,3,4,4,6-hexamethyl-1,2,3,4-tetrahydro- naphthalene - Google Patents

Preparation of 1,1,3,4,4,6-hexamethyl-1,2,3,4-tetrahydro- naphthalene

Info

Publication number
JPS5643221A
JPS5643221A JP11894279A JP11894279A JPS5643221A JP S5643221 A JPS5643221 A JP S5643221A JP 11894279 A JP11894279 A JP 11894279A JP 11894279 A JP11894279 A JP 11894279A JP S5643221 A JPS5643221 A JP S5643221A
Authority
JP
Japan
Prior art keywords
compound
neohexene
formula
cymene
chloromethyl
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.)
Pending
Application number
JP11894279A
Other languages
Japanese (ja)
Inventor
Norifusa Miyamoto
Yoshiaki Fujikura
Kazuo Hachitani
Yoshiaki Inamoto
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.)
Kao Corp
Original Assignee
Kao 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 Kao Corp filed Critical Kao Corp
Priority to JP11894279A priority Critical patent/JPS5643221A/en
Publication of JPS5643221A publication Critical patent/JPS5643221A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To prepare the titled compound giving a component of musk perfumery by ecetylation, in high yield and selectivity, by reacting p-cymene with neohexene in the presence of anhydrous aluminum chloride and a primary alkyl chloride.
CONSTITUTION: The compound of formula II is prepared by reacting p-cymene with neohexene in the presence of anhydrous aluminum chloride and a compound of formula I (R1 and R2 are alkyl or aryl), e.g. chloromethyl dimethyl methane, chloromethyl methylphenyl methane, chloromethyl diphenyl methane, etc. The amount of the compound of formula I is 1.0W1.5mol/mol of neohexene.
EFFECT: Since the by-production of p-cymene dimer is remarkably reduced, and that of pentamethylindane is completely inhibited, the objective compound is obtained in high purity simply by the simple distillation of the reaction product.
COPYRIGHT: (C)1981,JPO&Japio
JP11894279A 1979-09-17 1979-09-17 Preparation of 1,1,3,4,4,6-hexamethyl-1,2,3,4-tetrahydro- naphthalene Pending JPS5643221A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11894279A JPS5643221A (en) 1979-09-17 1979-09-17 Preparation of 1,1,3,4,4,6-hexamethyl-1,2,3,4-tetrahydro- naphthalene

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11894279A JPS5643221A (en) 1979-09-17 1979-09-17 Preparation of 1,1,3,4,4,6-hexamethyl-1,2,3,4-tetrahydro- naphthalene

Publications (1)

Publication Number Publication Date
JPS5643221A true JPS5643221A (en) 1981-04-21

Family

ID=14749043

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11894279A Pending JPS5643221A (en) 1979-09-17 1979-09-17 Preparation of 1,1,3,4,4,6-hexamethyl-1,2,3,4-tetrahydro- naphthalene

Country Status (1)

Country Link
JP (1) JPS5643221A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59501664A (en) * 1982-03-12 1984-10-04 ブツシユ　ボ−ク　アレン　リミテイド Friedel-Crafts reaction
JPH01196250A (en) * 1988-01-30 1989-08-08 Koubeya:Kk Daily dish breads for reheating
CN109438158A (en) * 2018-11-23 2019-03-08 山东新和成药业有限公司 A method of synthesis 1,1,3,4,4,6- hexamethyl tetrahydronaphthalene

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59501664A (en) * 1982-03-12 1984-10-04 ブツシユ　ボ−ク　アレン　リミテイド Friedel-Crafts reaction
JPH0417168B2 (en) * 1982-03-12 1992-03-25 Bush Boake Allen Ltd
JPH01196250A (en) * 1988-01-30 1989-08-08 Koubeya:Kk Daily dish breads for reheating
CN109438158A (en) * 2018-11-23 2019-03-08 山东新和成药业有限公司 A method of synthesis 1,1,3,4,4,6- hexamethyl tetrahydronaphthalene
CN109438158B (en) * 2018-11-23 2021-05-25 山东新和成药业有限公司 Method for synthesizing 1,1,3,4,4, 6-hexamethyltetralin

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