EP 0000907 A1 19790307 - Process for the preparation of furanones and intermediate products in this process.
Title (en)
Process for the preparation of furanones and intermediate products in this process.
Title (de)
Verfahren zur Herstellung von Furanonen und Zwischenprodukte in diesem Verfahren.
Title (fr)
Procédé de préparation de furanones et produits intermédiaires pour ce procédé.
Publication
Application
Priority
- LU 77955 A 19770811
- LU 78691 A 19771214
Abstract (en)
[origin: ES472467A1] This deals with a process for making furanones having the formula: < IMAGE > I wherein R represents a hydrogen atom or the methyl or ethyl group.
Abstract (de)
Herstellung von Furanonen - die bekannte Geschmackstoffe sind - der Formel I durch die folgenden Reaktionen: <IMAGE> [R (gleich oder verschieden): H, CH3, C2H5 R¹: Alkyl]
IPC 1-7
IPC 8 full level
A23L 27/20 (2016.01); C07D 307/32 (2006.01); C07D 307/33 (2006.01); C07D 307/60 (2006.01)
CPC (source: EP US)
A23L 27/2052 (2016.08 - EP US); C07D 307/32 (2013.01 - EP US); C07D 307/60 (2013.01 - EP US)
Citation (search report)
- [X] DE 2600864 A1 19770721 - BASF AG
- [X] NL 7216271 A 19740604
- DE 1768649 B2 19721221
- DE 1913476 A1 19700226 - UNILEVER NV
- DE 2105014 B2 19730308
- [A] DE 1768658 B1 19720309 - FIRMENICH & CIE
- [A] DE 1793444 B2 19780323
- [X] CHEMICAL ABSTRACTS, (1972), 76, 152984f "Tautomerism of 4-cyanothiophan-3-one and 4-cyano-5-methyltetrahydrofuran-3-one" S.N. MALKOVA Erastov, O.A. Ignat'eva, & Khim. Geterotsikl. Soedin, 1971, 7(12) 1620-5
- HOUBEN-WEYL, 4-Auflage, 1965, "Methoden der organischen Chemie", Georg Thieme Verlag, Stuttgart, Band VI/3, Seiten 587-588
Designated contracting state (EPC)
BE CH DE FR GB NL
DOCDB simple family (publication)
EP 0000907 A1 19790307; EP 0000907 B1 19810617; CA 1132994 A 19821005; DE 2835368 A1 19790222; DE 2860774 D1 19810924; ES 472467 A1 19790216; FR 2400020 A1 19790309; GB 2002380 A 19790221; GB 2002380 B 19820224; IT 1098013 B 19850831; IT 7826596 A0 19780808; JP S5430152 A 19790306; JP S5757035 B2 19821202; NL 7808366 A 19790213; US 4181666 A 19800101
DOCDB simple family (application)
EP 78100650 A 19780811; CA 309084 A 19780810; DE 2835368 A 19780811; DE 2860774 T 19780811; ES 472467 A 19780810; FR 7823447 A 19780809; GB 7832936 A 19780810; IT 2659678 A 19780808; JP 9775078 A 19780810; NL 7808366 A 19780810; US 92813678 A 19780726