JPS5782384A - Preparation of dihydrofuran derivative - Google Patents

Preparation of dihydrofuran derivative

Info

Publication number
JPS5782384A
JPS5782384A JP15816880A JP15816880A JPS5782384A JP S5782384 A JPS5782384 A JP S5782384A JP 15816880 A JP15816880 A JP 15816880A JP 15816880 A JP15816880 A JP 15816880A JP S5782384 A JPS5782384 A JP S5782384A
Authority
JP
Japan
Prior art keywords
compound
formula
pref
earth metal
alkaline earth
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
JP15816880A
Other languages
Japanese (ja)
Inventor
Tetsuya Kato
Hisashi Kondo
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.)
Toray Industries Inc
Original Assignee
Toray Industries Inc
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 Toray Industries Inc filed Critical Toray Industries Inc
Priority to JP15816880A priority Critical patent/JPS5782384A/en
Publication of JPS5782384A publication Critical patent/JPS5782384A/en
Pending legal-status Critical Current

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  • Furan Compounds (AREA)

Abstract

PURPOSE: To prepare the titled compound useful as perfumery, in high yield, by reacting an epoxy compound with an alkaline earth metal salt, thereby selectively rearranging the compound without using a strong acid.
CONSTITUTION: The compound of formula II is prepared by reacting 1mol of the compound of formula I(X is -CH2-CH2-, -CH=CH-, -CHOH-CH2-,etc. R is H, 1W 10C alphatic hydrocarbon or aromatic hydrocarbon group) with ≥1mol, pref. 3W 20mol of an alkaline earth metal salt (e.g. magnesium fluoride, magnesium chloride, magnesium bromide, etc.) in a solvent such as pentane, hexane, heptane, benzene, etc., at room temp. W180°C, pref. 20W120°C. The compound of formula I can be converted, in high yield, to the compound of formula II which is unstable to strong acid, by a rearrangement reaction.
COPYRIGHT: (C)1982,JPO&Japio
JP15816880A 1980-11-12 1980-11-12 Preparation of dihydrofuran derivative Pending JPS5782384A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15816880A JPS5782384A (en) 1980-11-12 1980-11-12 Preparation of dihydrofuran derivative

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15816880A JPS5782384A (en) 1980-11-12 1980-11-12 Preparation of dihydrofuran derivative

Publications (1)

Publication Number Publication Date
JPS5782384A true JPS5782384A (en) 1982-05-22

Family

ID=15665754

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15816880A Pending JPS5782384A (en) 1980-11-12 1980-11-12 Preparation of dihydrofuran derivative

Country Status (1)

Country Link
JP (1) JPS5782384A (en)

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