JPS57203025A - Preparation of unsaturated aldehyde - Google Patents

Preparation of unsaturated aldehyde

Info

Publication number
JPS57203025A
JPS57203025A JP8648582A JP8648582A JPS57203025A JP S57203025 A JPS57203025 A JP S57203025A JP 8648582 A JP8648582 A JP 8648582A JP 8648582 A JP8648582 A JP 8648582A JP S57203025 A JPS57203025 A JP S57203025A
Authority
JP
Japan
Prior art keywords
formula
unsaturated aldehyde
aldehyde
raw material
under heating
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
JP8648582A
Other languages
Japanese (ja)
Other versions
JPS6026378B2 (en
Inventor
Yataro Ichikawa
Aoi Yamamoto
Teizo Yamaji
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.)
Teijin Ltd
Original Assignee
Teijin 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 Teijin Ltd filed Critical Teijin Ltd
Priority to JP8648582A priority Critical patent/JPS6026378B2/en
Publication of JPS57203025A publication Critical patent/JPS57203025A/en
Publication of JPS6026378B2 publication Critical patent/JPS6026378B2/en
Expired legal-status Critical Current

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

Abstract

PURPOSE: To obtain an α,β-unsaturated aldehyde easily, by rearranging a dienyl ether as a raw material derived from an acetal of a relatively unsaturated aldehyde and a saturated alcohol under heating.
CONSTITUTION: A dienyl ether expressed by formula[R1WR4 are H, or 1W20C hydrocarbon residue; R5 is formula II (R6WR8 are H or 1W40C satrated hydrocarbon residue)], e.g. dihydrocitral of formula III or phytyl aldehyde of formula IV, as a raw material is rearranged under heating to give an α,β-unsaturated aldehyde expressed by formula V. The reaction is preferably carried out in the presence of an acidic catalyst, e.g. hydrochloric acid or sulfuric acid. The reaction temperature is 200W500°C, preferably 220W450°C.
COPYRIGHT: (C)1982,JPO&Japio
JP8648582A 1982-05-24 1982-05-24 Method for producing unsaturated aldehydes Expired JPS6026378B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8648582A JPS6026378B2 (en) 1982-05-24 1982-05-24 Method for producing unsaturated aldehydes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8648582A JPS6026378B2 (en) 1982-05-24 1982-05-24 Method for producing unsaturated aldehydes

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP49149026A Division JPS5843376B2 (en) 1974-12-27 1974-12-27 Fuhouwa aldehyde no seizouhou

Publications (2)

Publication Number Publication Date
JPS57203025A true JPS57203025A (en) 1982-12-13
JPS6026378B2 JPS6026378B2 (en) 1985-06-24

Family

ID=13888275

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8648582A Expired JPS6026378B2 (en) 1982-05-24 1982-05-24 Method for producing unsaturated aldehydes

Country Status (1)

Country Link
JP (1) JPS6026378B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6191313B1 (en) 1998-04-07 2001-02-20 Roche Vitamins Inc. Process for the manufacture of dihydrocitral

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6191313B1 (en) 1998-04-07 2001-02-20 Roche Vitamins Inc. Process for the manufacture of dihydrocitral

Also Published As

Publication number Publication date
JPS6026378B2 (en) 1985-06-24

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