JPS5711938A - Preparation of 1,1-dialkoxy-3-alkynes - Google Patents

Preparation of 1,1-dialkoxy-3-alkynes

Info

Publication number
JPS5711938A
JPS5711938A JP8505980A JP8505980A JPS5711938A JP S5711938 A JPS5711938 A JP S5711938A JP 8505980 A JP8505980 A JP 8505980A JP 8505980 A JP8505980 A JP 8505980A JP S5711938 A JPS5711938 A JP S5711938A
Authority
JP
Japan
Prior art keywords
dialkoxy
formula
give
compound
butin
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
JP8505980A
Other languages
Japanese (ja)
Other versions
JPS6210494B2 (en
Inventor
Akira Fujita
Nobuo Takayama
Keiichi Takagi
Kunio Kojo
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.)
T Hasegawa Co Ltd
Original Assignee
T Hasegawa Co Ltd
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 T Hasegawa Co Ltd filed Critical T Hasegawa Co Ltd
Priority to JP8505980A priority Critical patent/JPS5711938A/en
Publication of JPS5711938A publication Critical patent/JPS5711938A/en
Publication of JPS6210494B2 publication Critical patent/JPS6210494B2/ja
Granted legal-status Critical Current

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

Abstract

PURPOSE: To obtain the titled compound useful as an intermediate for a perfume component by one stage in high yield and in high purity, by reacting a 4,4-dialkoxy- 1-butin to be synthesized readily as a raw material with a Grignard reagent, followed by reacting the reaction product with an alkalifying agent.
CONSTITUTION: A 4,4-dialkoxy-1-butin shown by the formula I(R' is 1W3C alkyl) as a raw material is reacted with a Grignard reagent or alkali metal amide, to give a reaction product, which is reacted with an alkalifying agent shown by the formula R-X(R is 1W16C alkyl, 2W10C alkenyl; 3W16C alkynyl, or aryl; X is halogen, mesyl, or tosyl), to give a 1,1-dialkoxy-3-alkyne shown by the formula II. This compound is obtained readily in a yield about ≥90% without causing an inconvenient isomerization reaction. The compound is subjected to cataltric reduction by hydrogen in the presence of a Lindlar catalyst, and hydrolyzed to give a perfume component shown by the formula III.
COPYRIGHT: (C)1982,JPO&Japio
JP8505980A 1980-06-25 1980-06-25 Preparation of 1,1-dialkoxy-3-alkynes Granted JPS5711938A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8505980A JPS5711938A (en) 1980-06-25 1980-06-25 Preparation of 1,1-dialkoxy-3-alkynes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8505980A JPS5711938A (en) 1980-06-25 1980-06-25 Preparation of 1,1-dialkoxy-3-alkynes

Publications (2)

Publication Number Publication Date
JPS5711938A true JPS5711938A (en) 1982-01-21
JPS6210494B2 JPS6210494B2 (en) 1987-03-06

Family

ID=13848059

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8505980A Granted JPS5711938A (en) 1980-06-25 1980-06-25 Preparation of 1,1-dialkoxy-3-alkynes

Country Status (1)

Country Link
JP (1) JPS5711938A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58162545A (en) * 1982-03-04 1983-09-27 モンテデイソン・エツセ・ピ・ア Manufacture of 1-desiloxy-4-((7-oxa-4-octynyl) oxy)benzene
JPS58164536A (en) * 1982-03-04 1983-09-29 モンテディソン・エッセ・ピ・ア Manufacture of 1-desiloxy-4-((7-oxa-4-octynyl) oxy)benzene
JPS5925347A (en) * 1982-08-03 1984-02-09 T Hasegawa Co Ltd Preparation of 1,1-dialkoxy-3-alkynes

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58162545A (en) * 1982-03-04 1983-09-27 モンテデイソン・エツセ・ピ・ア Manufacture of 1-desiloxy-4-((7-oxa-4-octynyl) oxy)benzene
JPS58164536A (en) * 1982-03-04 1983-09-29 モンテディソン・エッセ・ピ・ア Manufacture of 1-desiloxy-4-((7-oxa-4-octynyl) oxy)benzene
JPS5925347A (en) * 1982-08-03 1984-02-09 T Hasegawa Co Ltd Preparation of 1,1-dialkoxy-3-alkynes

Also Published As

Publication number Publication date
JPS6210494B2 (en) 1987-03-06

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