JPS6468332A - Production of cyclotenes - Google Patents

Production of cyclotenes

Info

Publication number
JPS6468332A
JPS6468332A JP22607087A JP22607087A JPS6468332A JP S6468332 A JPS6468332 A JP S6468332A JP 22607087 A JP22607087 A JP 22607087A JP 22607087 A JP22607087 A JP 22607087A JP S6468332 A JPS6468332 A JP S6468332A
Authority
JP
Japan
Prior art keywords
expressed
formula
reaction
compound
passed
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
JP22607087A
Other languages
Japanese (ja)
Inventor
Tetsuo Miyakoshi
Hidetaka Tsukasa
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.)
Toyotama Koryo Co Ltd
Original Assignee
Toyotama Koryo 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 Toyotama Koryo Co Ltd filed Critical Toyotama Koryo Co Ltd
Priority to JP22607087A priority Critical patent/JPS6468332A/en
Publication of JPS6468332A publication Critical patent/JPS6468332A/en
Pending legal-status Critical Current

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

Abstract

PURPOSE:To readily obtain a cyclotene and derivative thereof in the same process from the same starting substance, by passing tetrahydropyranyl-2- nitroethanol and an alpha,beta-unsaturated ketone through the Michael reaction, Nef reaction and cyclizing steps. CONSTITUTION:(i) Tetrahydropyranyl-2-nitroethanol expressed by formula I (R<1> is tetrahydropyran) and an alpha,beta-unsaturated ketone expressed by formula II (R<2>-R<4> are H or any one may be CH3) are passed through the Michael reaction step to provide a gamma-nitroketone expressed by formula III and (ii) a compound expressed by formula III is then passed through the Nef reaction to afford a 1,4-diketone expressed by formula IV. (iii) The compound expressed by formula IV is subsequently passed through a cyclizing step. Thereby the aimed compound, expressed by formula IV and useful as a food flavor, aromatic ingredient of coffee beans, etc., is obtained at a low cost, since the above- mentioned compound can be readily produced from the same starting substance under mild reaction condition by passing through the same relatively short process using a common reaction apparatus.
JP22607087A 1987-09-09 1987-09-09 Production of cyclotenes Pending JPS6468332A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP22607087A JPS6468332A (en) 1987-09-09 1987-09-09 Production of cyclotenes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP22607087A JPS6468332A (en) 1987-09-09 1987-09-09 Production of cyclotenes

Publications (1)

Publication Number Publication Date
JPS6468332A true JPS6468332A (en) 1989-03-14

Family

ID=16839339

Family Applications (1)

Application Number Title Priority Date Filing Date
JP22607087A Pending JPS6468332A (en) 1987-09-09 1987-09-09 Production of cyclotenes

Country Status (1)

Country Link
JP (1) JPS6468332A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009215204A (en) * 2008-03-10 2009-09-24 Japan Science & Technology Agency METHOD FOR PRODUCING CYCLIC alpha-HYDROXY-alpha,beta-UNSATURATED KETONE COMPOUND AND CYCLOPENTENONE COMPOUND

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009215204A (en) * 2008-03-10 2009-09-24 Japan Science & Technology Agency METHOD FOR PRODUCING CYCLIC alpha-HYDROXY-alpha,beta-UNSATURATED KETONE COMPOUND AND CYCLOPENTENONE COMPOUND

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