FI72720C - 4-halogen-dihydropyronfoerening foer anvaendning som mellanprodukt vid framstaellningen av 3-hydroxi-4-pyroner och foerfarande foer dess framstaellning. - Google Patents
4-halogen-dihydropyronfoerening foer anvaendning som mellanprodukt vid framstaellningen av 3-hydroxi-4-pyroner och foerfarande foer dess framstaellning. Download PDFInfo
- Publication number
- FI72720C FI72720C FI831702A FI831702A FI72720C FI 72720 C FI72720 C FI 72720C FI 831702 A FI831702 A FI 831702A FI 831702 A FI831702 A FI 831702A FI 72720 C FI72720 C FI 72720C
- Authority
- FI
- Finland
- Prior art keywords
- foer
- formula
- halogen
- pyroner
- framstaellningen
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- 229910052739 hydrogen Inorganic materials 0.000 claims description 17
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical group [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 claims description 11
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Chemical group BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 claims description 11
- 229910052794 bromium Chemical group 0.000 claims description 11
- 150000001875 compounds Chemical class 0.000 claims description 11
- 229910052801 chlorine Inorganic materials 0.000 claims description 10
- 239000000460 chlorine Substances 0.000 claims description 10
- 238000002360 preparation method Methods 0.000 claims description 10
- VEYIMQVTPXPUHA-UHFFFAOYSA-N 3-hydroxypyran-4-one Chemical class OC1=COC=CC1=O VEYIMQVTPXPUHA-UHFFFAOYSA-N 0.000 claims description 9
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 claims description 9
- 239000001257 hydrogen Substances 0.000 claims description 9
- YLQBMQCUIZJEEH-UHFFFAOYSA-N Furan Chemical compound C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 claims description 8
- 125000000217 alkyl group Chemical group 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 7
- -1 4-halogenated dihydropyrone compound Chemical class 0.000 claims description 5
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims description 5
- 125000001309 chloro group Chemical group Cl* 0.000 claims description 5
- 239000007800 oxidant agent Substances 0.000 claims description 5
- 230000001590 oxidative effect Effects 0.000 claims description 5
- 239000007864 aqueous solution Substances 0.000 claims description 4
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 4
- XPCTZQVDEJYUGT-UHFFFAOYSA-N 3-hydroxy-2-methyl-4-pyrone Chemical compound CC=1OC=CC(=O)C=1O XPCTZQVDEJYUGT-UHFFFAOYSA-N 0.000 description 15
- HYMLWHLQFGRFIY-UHFFFAOYSA-N Maltol Natural products CC1OC=CC(=O)C1=O HYMLWHLQFGRFIY-UHFFFAOYSA-N 0.000 description 7
- 229940043353 maltol Drugs 0.000 description 7
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 6
- 239000002253 acid Substances 0.000 description 5
- 125000004432 carbon atom Chemical group C* 0.000 description 4
- 239000011541 reaction mixture Substances 0.000 description 4
- 239000002904 solvent Substances 0.000 description 4
- 238000003786 synthesis reaction Methods 0.000 description 4
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 150000002431 hydrogen Chemical group 0.000 description 3
- 239000000543 intermediate Substances 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- UABXUIWIFUZYQK-UHFFFAOYSA-N 1-(furan-2-yl)ethanol Chemical compound CC(O)C1=CC=CO1 UABXUIWIFUZYQK-UHFFFAOYSA-N 0.000 description 2
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- YIKYNHJUKRTCJL-UHFFFAOYSA-N Ethyl maltol Chemical compound CCC=1OC=CC(=O)C=1O YIKYNHJUKRTCJL-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 150000007513 acids Chemical class 0.000 description 2
- 125000001797 benzyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])* 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- SKCNIGRBPJIUBQ-UHFFFAOYSA-N chloroform;ethyl acetate Chemical compound ClC(Cl)Cl.CCOC(C)=O SKCNIGRBPJIUBQ-UHFFFAOYSA-N 0.000 description 2
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 2
- 229940093503 ethyl maltol Drugs 0.000 description 2
- 229910052736 halogen Inorganic materials 0.000 description 2
- 150000002367 halogens Chemical class 0.000 description 2
- 239000004615 ingredient Substances 0.000 description 2
- 239000002304 perfume Substances 0.000 description 2
- 239000000741 silica gel Substances 0.000 description 2
- 229910002027 silica gel Inorganic materials 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- MGVKFOXKPFXROH-UHFFFAOYSA-N 2-ethyl-3-hydroxy-6-methylpyran-4-one Chemical compound CCC=1OC(C)=CC(=O)C=1O MGVKFOXKPFXROH-UHFFFAOYSA-N 0.000 description 1
- DQYZMWTXNWIUNS-UHFFFAOYSA-N 4-bromo-2-hydroxy-2h-pyran-5-one Chemical compound OC1OCC(=O)C(Br)=C1 DQYZMWTXNWIUNS-UHFFFAOYSA-N 0.000 description 1
- DSEPAHSEUBGYDG-UHFFFAOYSA-N 4-bromo-2-hydroxy-6-methyl-2h-pyran-5-one Chemical compound CC1OC(O)C=C(Br)C1=O DSEPAHSEUBGYDG-UHFFFAOYSA-N 0.000 description 1
- TXCADDUIVINZSC-UHFFFAOYSA-N 4-bromo-6-ethyl-2-hydroxy-2h-pyran-5-one Chemical compound CCC1OC(O)C=C(Br)C1=O TXCADDUIVINZSC-UHFFFAOYSA-N 0.000 description 1
- IGMQAWRMDKAASU-UHFFFAOYSA-N 4-chloro-2-hydroxy-2h-pyran-5-one Chemical compound OC1OCC(=O)C(Cl)=C1 IGMQAWRMDKAASU-UHFFFAOYSA-N 0.000 description 1
- UIYKATFGIGUNGC-UHFFFAOYSA-N 4-chloro-2-hydroxy-6-methyl-2h-pyran-5-one Chemical compound CC1OC(O)C=C(Cl)C1=O UIYKATFGIGUNGC-UHFFFAOYSA-N 0.000 description 1
- IBSOWVDZAXZPTI-UHFFFAOYSA-N 4-chloro-6-ethyl-2-hydroxy-2h-pyran-5-one Chemical compound CCC1OC(O)C=C(Cl)C1=O IBSOWVDZAXZPTI-UHFFFAOYSA-N 0.000 description 1
- MALOBWMOORWUQW-UHFFFAOYSA-N 4h-pyran-3-one Chemical class O=C1COC=CC1 MALOBWMOORWUQW-UHFFFAOYSA-N 0.000 description 1
- 241000894006 Bacteria Species 0.000 description 1
- 241000723343 Cichorium Species 0.000 description 1
- 235000007542 Cichorium intybus Nutrition 0.000 description 1
- ZAFNJMIOTHYJRJ-UHFFFAOYSA-N Diisopropyl ether Chemical compound CC(C)OC(C)C ZAFNJMIOTHYJRJ-UHFFFAOYSA-N 0.000 description 1
- 239000004097 EU approved flavor enhancer Substances 0.000 description 1
- 241000233866 Fungi Species 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 241000218652 Larix Species 0.000 description 1
- 235000005590 Larix decidua Nutrition 0.000 description 1
- 235000019502 Orange oil Nutrition 0.000 description 1
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- CVQUWLDCFXOXEN-UHFFFAOYSA-N Pyran-4-one Chemical compound O=C1C=COC=C1 CVQUWLDCFXOXEN-UHFFFAOYSA-N 0.000 description 1
- 125000002777 acetyl group Chemical group [H]C([H])([H])C(*)=O 0.000 description 1
- 238000005903 acid hydrolysis reaction Methods 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 239000012670 alkaline solution Substances 0.000 description 1
- 150000001408 amides Chemical class 0.000 description 1
- CODNYICXDISAEA-UHFFFAOYSA-N bromine monochloride Chemical compound BrCl CODNYICXDISAEA-UHFFFAOYSA-N 0.000 description 1
- 150000001719 carbohydrate derivatives Chemical class 0.000 description 1
- 150000002009 diols Chemical class 0.000 description 1
- 239000003623 enhancer Substances 0.000 description 1
- 239000000686 essence Substances 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 239000002024 ethyl acetate extract Substances 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 235000019264 food flavour enhancer Nutrition 0.000 description 1
- 239000003205 fragrance Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 150000002576 ketones Chemical class 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 150000007522 mineralic acids Chemical class 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 235000013379 molasses Nutrition 0.000 description 1
- 150000002825 nitriles Chemical class 0.000 description 1
- 238000000655 nuclear magnetic resonance spectrum Methods 0.000 description 1
- 239000010502 orange oil Substances 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 238000000197 pyrolysis Methods 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- UCSJYZPVAKXKNQ-HZYVHMACSA-N streptomycin Chemical class CN[C@H]1[C@H](O)[C@@H](O)[C@H](CO)O[C@H]1O[C@@H]1[C@](C=O)(O)[C@H](C)O[C@H]1O[C@@H]1[C@@H](NC(N)=N)[C@H](O)[C@@H](NC(N)=N)[C@H](O)[C@H]1O UCSJYZPVAKXKNQ-HZYVHMACSA-N 0.000 description 1
- CZDYPVPMEAXLPK-UHFFFAOYSA-N tetramethylsilane Chemical compound C[Si](C)(C)C CZDYPVPMEAXLPK-UHFFFAOYSA-N 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D309/00—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only ring hetero atom, not condensed with other rings
- C07D309/32—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only ring hetero atom, not condensed with other rings having two double bonds between ring members or between ring members and non-ring members
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D309/00—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only ring hetero atom, not condensed with other rings
- C07D309/34—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only ring hetero atom, not condensed with other rings having three or more double bonds between ring members or between ring members and non-ring members
- C07D309/36—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only ring hetero atom, not condensed with other rings having three or more double bonds between ring members or between ring members and non-ring members with oxygen atoms directly attached to ring carbon atoms
- C07D309/40—Oxygen atoms attached in positions 3 and 4, e.g. maltol
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Pyrane Compounds (AREA)
- Pyridine Compounds (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Cosmetics (AREA)
- Plural Heterocyclic Compounds (AREA)
- Saccharide Compounds (AREA)
- Furan Compounds (AREA)
- Picture Signal Circuits (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
- Transforming Electric Information Into Light Information (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Nitrogen Condensed Heterocyclic Rings (AREA)
- Processing Of Color Television Signals (AREA)
- Heterocyclic Carbon Compounds Containing A Hetero Ring Having Oxygen Or Sulfur (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
- Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems (AREA)
- Seasonings (AREA)
- Control Of El Displays (AREA)
Description
1 72720 Välituotteena 3-hydroksi-4-pyronien valmistuksessa käyttökelpoinen 4-halogeeni-dihydropyroniyhdiste ja menetelmä sen valmistamiseksi 5 Jakamalla erotettu patenttihakemuksesta 771934.
Tämä keksintö koskee uusia, 3-hydroksi-4-pyronien valmistuksessa välituotteina käyttökelpoisia 4-halogeeni-dihydropyroni-yhdisteitä joilla on kaava (II')
10 X
|^S-° (I1'' 15 jossa R on vety tai alempi alkyyli ja X on kloori tai bromi, ja niiden valmistusta.
Maltoli (2-metyyli-3-hydroksi-4-pyroni) on luonnossa esiintyvä aine, jota on löydetty nuorten lehtikuusien kaarnasta, männyn neulasista ja sikurista. Aikaisempi teknilli-20 nen valmistus on tapahtunut kuivatislaamalla puuta. Malto-lin syntetisointia 3-hydroksi-2-(1-piperidyylimetyyli)-1,4-pyronista ovat selostaneet Spielman ja Freifelder artikkelissa J. Am. Chem. Soc. 69 (1947) 2908. Schenck ja Spielman, J. Am. Chem. Soc. 67 (1945) 2276, saivat maltolia hydroly-25 soimalla alkalisessa liuoksessa streptomysiinisuoloja.
Chawla ja McGonigal, J. Org. Chem. 39 (1974) 3281 ja Lichten-thaler ja Heidel, Angew. Chem. 81 (1969) 998, ovat selostaneet maltolin syntetisointia suojatuista hiilihydraatti-johdannaisista. Shono ja Matsumura, Tetrahedron Letters No.
30 17 (1976) 1363, ovat selostaneet viisivaiheista maltolin synteesiä lähtemällä metyylifurfuryylialkoholista.
6-metyyli-2-etyyli-3-hydroksi-4-pyronin eristämistä eräänä tyypillisenä melassin jalostuksessa saatavana makean-tuoksuisena aineosana on selostanut Hiroshi Ito artikkelis-35 sa Agr. Biol. Chem. 40 (5) (1976) 827-832. Tätä yhdistettä oli syntentisoitu aikaisemmin menetelmällä, jota on selostettu US-patenttijulkaisussa 3 468 915.
2 72720 3-hydroksi-4-pyronien, kuten pyromekonihapon, malto-lin, etyylimaltolin ja muiden 2-substituoitu 3-hydroksi-4-pyronien synteesejä on selostettu US-patenttijulkaisuissa 3 130 204, 3 133 089, 3 140 239, 3 159 652, 3 365 469, 5 3 376 317, 3 468 915, 3 440 183 ja 3 446 629.
Maltoli ja etyylimaltoli lisäävät erilaisten elintarvikkeiden makua ja tuoksuja. Lisäksi näitä yhdisteitä käytetään hajusteiden ja esanssien aineosina. 2-alkenyyli-pyromekonihapot, joita on selostettu US-patenttijulkaisus-10 sa 3 644 635 ja 2-aryylimetyylipyromekonihapot, joita on selostettu US-patenttijulkaisussa 3 365 469, ehkäisevät bakteerien ja sienien lisääntymistä ja ovat käyttökelpoisia makua ja tuoksua lisääviä aineita elintarvikkeissa ja virvoitusjuomissa ja tuoksun vahvistajina hajusteissa.
15 Patenttihakemuksessa 771934 esitetään menetelmä 3- hydroksi-4-pyronijohdannaisten valmistamiseksi happohydro-lyysillä 3-pyronijohdannaisesta. Tällöin 3-hydroksi-4-pyro-ni, jolla on kaava (I)
O
20 A
OH
I jT (I)
v O R
jossa R on vety, alkyyli, jossa on 1-4 hiiliatomia, tai 25 bentsyyli, valmistetaan lähtemällä 4-halogeeni-2,6-dihydro- 3-pyronista tai 6,6'-oksi-bis-£4-halogeeni-2,6-dihydro-3-pyronist%7, joilla on kaava (II)
X
30 I
^ JL (11)
R' (O' R
joissa R on vety, alkyyli, jossa on 1-4 hiiliatomia, tai bentsyyli, R' on vety, alempi alkyyli, asetyyli tai mah-35 dollisesti 2-(alempi alkyyli)substituoitu 4-halogeenidi-hydropyranyyli, ja X on kloori tai bromi.
72720
Hydrolyysissä tarvittava happo voidaan lisätä reaktio-seokseen, eism. liuottamalla kaavan (II) mukainen yhdiste ennen lämmittämistä vesipitoiseen epäorgaanisen tai orgaanisen hapon liuokseen; tai vaihtoehtoisesti happoa voidaan 5 muodostaa in situ väliyhdisteitä valmistettaessa kuten seu-raavassa selostetaan.
Edellä mainittua kaavan (II) mukaista yhdistettä voidaan valmistaa saattamalla yhdiste, jolla on kaava (IV) i» ri?vv0 r.o^cAr <iv> jossa R ja R' merkitsevät samaa kuin edellä, reagoimaan 15 liuottimessa, -50 ... +50°C:n lämpötilassa, edullisesti huoneen lämpötilassa ainakin yhden ekvivalentin kanssa halogeenipitoista hapetinta, joka on kloori, bromi, bromi-kloridi, alikloorihapoke, alibromihapoke tai näiden seos, kunnes reaktio on oleellisesti tapahtunut täydellisesti.
20 Esimerkkeinä tässä reaktiossa käytettäviksi soveltu vista liuottimista ovat vesi, alkanoli tai dioli, jossa on 1- 4 hiiliatomia, edullisesti metanoli, eetteri, jossa on 2- 10 hiiliatomia, edullisesti tetrahydrofuraani tai iso-propyylieetteri, pienen molekyylipainon omaava ketoni, 25 edullisesti asetoni, pienen molekyylipainon omaava nitrii-li, esteri tai amidi.
Kaavan (II') mukaiset 4-halogeeni-dihydropyraani-yhdisteet ovat uusia.
Keksinnön mukaiselle menetelmälle uusien kaavan (II1) 30 mukaisten yhdisteiden valmistamiseksi on tunnusomaista, että 2-(1-hydroksialkyyli)furaani, jolla on kaava (III)
Ooh -^ (III)
35 XR
72720 jossa R merkitsee samaa kuin edellä, saatetaan tetrahydro-furaanin vesiliuoksessa reagoimaan ainakin kahden ekvivalentin kanssa halogeenipitoista hapetinta, joka on kloori tai bromi, -50 ... +50°C:n lämpötilassa kaavan (II') mukaisen 5 yhdisteen saamiseksi.
Halogeenipitoinen hapetin on kloori tai bromi, edullisesti kloori.
Keksinnön edullisessa suoritusmuodossa fufuryylialko-holi saatetaan reagoimaan vesiliuoksessa, jossa on tetra-10 hydrofuraania, -10 ... +10°C:n lämpötilassa kahden ekvivalentin kanssa halogeenipitoista hapetinta. Kun reaktio-seosta on sekoitettu 30 minuuttia huoneen lämpötilassa, sen pH säädetään arvoon 2 vahvalla emäksellä ja reaktio-seos uutetaan liuottimena, esimerkiksi etyyliasetaatilla.
15 Poistettaessa liuotin saadaan kaavan (II') mukaista 4-halogeeni-6-hydroksi-2,6-dihydro-3-pyronia.
Seuraavat esimerkit kuvaavat keksinnön mukaisten 4-halogeeni-dihydropyroniyhdisteiden valmistusta.
Esimerkeissä, joissa on ilmoitettu spektritietoja, 20 NMR-spektrin kemiallisten siirtymien arvot on ilmoitettu kirjallisuudessa tavallisesti käytettävin symbolisin merkein ja kaikki siirtymät on ilmaistu ^-yksikköinä (tetra-metyylisilaanista): s = singletti 25 d = dubletti t = tripletti q = kvartetti m = multipletti br = leveä 30 Esimerkki 1 4-bromi-6-hydroksi-2-metyyli-2,6-dihydro-3-pyroni Liuokseen, jossa oli 25 g 1-(2-furyyli)-1-etanolia 125 ml:ssa tetrahydrofuraania ja 125 ml vettä 0 - 5°C:ssa, lisättiin tiputtamalla 2,2 ekvivalenttia bromia. Koko li-35 säyksen ajan lämpötila pidettiin välillä 5 - 10°C. Bromin lisäämisen jälkeen liuosta sekoitettiin huoneen lämpöti- 5 72720 tilassa 30 minuuttia ja pH säädettiin arvoon 2,1 2 n NaOH-liuoksella. Reaktioseos uutettiin etyyliasetaatilla (3 x 100 ml). Etyyliasetaatti-uutteet yhdistettiin, kuivattiin MgSO^:lla, suodatettiin ja haihdutettiin kuiviin. Jäännös 5 kromatografioitiin silikageelillä ja eluoitiin kloroformi-etyyliasetaatti-seoksella (95:5). Tuote oli oranssinväristä öljyä, joka kromatografioitiin uudelleen silikageelillä ja eluoitiin kloroformi-etyyliasetaattiseoksella (95:5).
NMR (CDC13, £) 7,3 (1H, d); 5,6 (1H, d); 4,7-5,0 (1H, q); 10 1,1-1,5 (3H, m).
Esimerkki 2
Esimerkin 1 mukainen menettely toistettiin käyttämällä fufuryylialkoholia, jonka kaava on
CV
R
jolloin saatiin yhdistettä, jonka kaava on 20 X
HO^ 25 jossa R on vety tai etyyli.
Etyyli-yhdiste: 4-bromi-6-hydroksi-2-etyyli-2,6-dihyd-ro-3-pyroni NMR (CDC13, £) 7,4 (1H, d); 4,6-4,9 (1H, m); 1,8-2,2 (2H, m)? 1,0-1,3 (3H, t).
30 Vety-yhdiste: 4-bromi-6-hydroksi-2,6-dihydro-3-pyroni NMR (CDC13, £ ) 7,4 (1H, d); 5,5 (1H, d); 4,6 (2H, d-d). Esimerkki 3
Toistettiin esimerkin 1 mukainen menetelmä käyttämällä bromin asemesta klooria ja sopivia furfuryylialkoholeja, 35 jolloin valmistettiin seuraavia yhdisteitä: 6 72720 JVtetyyli : 4-kloori-6-hydroksi-2-metyyli-2,6-dihydro-3- pyroni NMR (CDC13,£): 7,1 (1H, d); 5,8 (1H, d); 4,6-5,0 (1H, m); 4,4 (1H, br.s.); 1,2-1,5 (3H, m).
5 Etyyli: 4-kloori-6-hydroksi-2-etyyli-2,6-dihydro-3- pyroni NMR (CDC13,&): 7,0-7,1 (1H, d); 5,6-6,0 (2H, m); 4,4-5,0 (1H, m); 1,6-2,1 (2H, m); 0,9-1,1 (3H, t).
Vety: 4-kloori-6-hydroksi-2,6-dihydro-3-pyroni 10 NMR (CDC13,£): 7,1-7,2 (1H, d); 5,6 (1H, d); 4,4-4,9 (2H, d-d) lisätty).
Claims (2)
1. Välituotteena 3-hydroksi-4-pyronien valmistuksessa käyttökelpoinen 4-halogeeni-dihydropyroniyhdiste, t u n - 5. e t t u siitä, että sillä on kaava (II') X f^^T0 hcA o-^r (I1') 10 jossa R on vety tai alempi alkyyli ja X on kloori tai bromi.
2. Menetelmä välituotteena käyttökelpoisen 4-halogee-ni-dihydropyroniyhdisteen valmistamiseksi, jolla on kaava (II’ ) 15 1 (i1') Hcr^ o ^R 20 jossa R on vety tai alempi alkyyli ja X on kloori tai bromi, tunnettu siitä, että 2-(1-hydroksialkyyli)furaani, jolla on kaava (III) O-f jossa R merkitsee samaa kuin edellä, saatetaan tetrahydro-furaanin vesiliuoksessa reagoimaan ainakin kahden ekvivalen-30 tin kanssa halogeenipitoista hapetinta, joka on kloori tai bromi, -50 ... +50°C:n lämpötilassa kaavan (II') mukaisen yhdisteen saamiseksi.
Applications Claiming Priority (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US71090176A | 1976-08-02 | 1976-08-02 | |
| US71090176 | 1976-08-02 | ||
| US05/721,885 US4082717A (en) | 1976-08-02 | 1976-09-09 | Preparation of gamma-pyrones |
| US72188576 | 1976-09-09 | ||
| FI771934 | 1977-06-21 | ||
| FI771934A FI72722C (fi) | 1976-08-02 | 1977-06-21 | Foerfarande foer framstaellning av 3-hydroxi-4-pyroner. |
Publications (4)
| Publication Number | Publication Date |
|---|---|
| FI831702A0 FI831702A0 (fi) | 1983-05-16 |
| FI831702L FI831702L (fi) | 1983-05-16 |
| FI72720B FI72720B (fi) | 1987-03-31 |
| FI72720C true FI72720C (fi) | 1987-07-10 |
Family
ID=27108548
Family Applications (6)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FI771934A FI72722C (fi) | 1976-08-02 | 1977-06-21 | Foerfarande foer framstaellning av 3-hydroxi-4-pyroner. |
| FI831703A FI73424C (fi) | 1976-08-02 | 1983-05-16 | Foerfarande foer framstaellning av en som mellanprodukt vid 3-hydroxi-4-pyronframstaellningen anvaendbar 4-halogen- 6-(alkoxi eller alkanoyloxi)-2,6-dihydro-3-pyron. |
| FI831702A FI72720C (fi) | 1976-08-02 | 1983-05-16 | 4-halogen-dihydropyronfoerening foer anvaendning som mellanprodukt vid framstaellningen av 3-hydroxi-4-pyroner och foerfarande foer dess framstaellning. |
| FI831704A FI72721C (fi) | 1976-08-02 | 1983-05-16 | Vid framstaellning av gamma-pyroner saosom mellanprodukt anvaendbar 6,6'oxi-bis/4-halogen-2,6-dihydro-3-pyron/ och foerfarande foer dess framstaellning. |
| FI831700A FI72119C (fi) | 1976-08-02 | 1983-05-16 | Foerfarande foer framstaellning av 2-alkyl-3-hydroxi-4-pyroner. |
| FI831701A FI72723C (fi) | 1976-08-02 | 1983-05-16 | Foerfarande foer framstaellning av 3-hydroxi-4-pyroner. |
Family Applications Before (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FI771934A FI72722C (fi) | 1976-08-02 | 1977-06-21 | Foerfarande foer framstaellning av 3-hydroxi-4-pyroner. |
| FI831703A FI73424C (fi) | 1976-08-02 | 1983-05-16 | Foerfarande foer framstaellning av en som mellanprodukt vid 3-hydroxi-4-pyronframstaellningen anvaendbar 4-halogen- 6-(alkoxi eller alkanoyloxi)-2,6-dihydro-3-pyron. |
Family Applications After (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FI831704A FI72721C (fi) | 1976-08-02 | 1983-05-16 | Vid framstaellning av gamma-pyroner saosom mellanprodukt anvaendbar 6,6'oxi-bis/4-halogen-2,6-dihydro-3-pyron/ och foerfarande foer dess framstaellning. |
| FI831700A FI72119C (fi) | 1976-08-02 | 1983-05-16 | Foerfarande foer framstaellning av 2-alkyl-3-hydroxi-4-pyroner. |
| FI831701A FI72723C (fi) | 1976-08-02 | 1983-05-16 | Foerfarande foer framstaellning av 3-hydroxi-4-pyroner. |
Country Status (36)
| Country | Link |
|---|---|
| JP (7) | JPS5318578A (fi) |
| AR (1) | AR216080A1 (fi) |
| AT (3) | AT362790B (fi) |
| BE (1) | BE855965A (fi) |
| BG (4) | BG28989A4 (fi) |
| BR (1) | BR7703970A (fi) |
| CA (3) | CA1095921A (fi) |
| CH (4) | CH625798A5 (fi) |
| CS (3) | CS203921B2 (fi) |
| DD (1) | DD132494A5 (fi) |
| DE (3) | DE2760221C2 (fi) |
| DK (4) | DK153483C (fi) |
| EG (1) | EG13080A (fi) |
| ES (5) | ES459994A1 (fi) |
| FI (6) | FI72722C (fi) |
| FR (1) | FR2372821A1 (fi) |
| GB (5) | GB1538373A (fi) |
| GR (1) | GR68938B (fi) |
| HK (5) | HK30381A (fi) |
| HU (4) | HU185686B (fi) |
| IE (5) | IE45644B1 (fi) |
| IT (1) | IT1106258B (fi) |
| LU (1) | LU77600A1 (fi) |
| MX (1) | MX4597E (fi) |
| MY (3) | MY8100267A (fi) |
| NL (5) | NL170955C (fi) |
| NO (7) | NO150561C (fi) |
| NZ (1) | NZ184342A (fi) |
| PH (5) | PH13557A (fi) |
| PL (4) | PL115586B1 (fi) |
| PT (1) | PT66694B (fi) |
| RO (4) | RO78953A (fi) |
| SE (6) | SE433079B (fi) |
| SU (2) | SU955859A3 (fi) |
| TR (1) | TR19652A (fi) |
| YU (4) | YU40166B (fi) |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1095921A (en) | 1976-08-02 | 1981-02-17 | Thomas M. Brennan | Preparation of gamma-pyrones |
| FR2402654A1 (fr) * | 1977-09-12 | 1979-04-06 | Shinetsu Chemical Co | Nouveaux derives de x tetrahydropyrannone(5) |
| JPS5444675A (en) * | 1977-09-12 | 1979-04-09 | Shin Etsu Chem Co Ltd | Production of 3-hydroxy-4-pyrone analog |
| JPS5741226U (fi) * | 1980-08-20 | 1982-03-05 | ||
| JPS59135008U (ja) * | 1983-02-28 | 1984-09-10 | 松下電工株式会社 | 分電盤装置 |
| JPS6050245A (ja) * | 1983-08-29 | 1985-03-19 | Nissan Motor Co Ltd | 内燃機関の燃料噴射装置 |
| JPH0226945Y2 (fi) * | 1985-09-11 | 1990-07-20 | ||
| JP2586607B2 (ja) * | 1987-10-30 | 1997-03-05 | 日産化学工業株式会社 | 光学活性アルコールの製造法 |
| WO2008116301A1 (en) * | 2007-03-28 | 2008-10-02 | Apotex Technologies Inc. | Fluorinated derivatives of deferiprone |
| CN102014904B (zh) | 2008-04-25 | 2013-02-06 | 阿普泰克斯科技公司 | 具有适口味道的去铁酮液体配制品 |
| AU2010268666B2 (en) | 2009-07-03 | 2014-07-24 | Apotex Inc. | Fluorinated derivatives of 3-Hydroxypyridin-4-ones |
| WO2017168309A1 (en) * | 2016-03-29 | 2017-10-05 | Dr. Reddy’S Laboratories Limited | Process for preparation of eribulin and intermediates thereof |
| CN108609456B (zh) * | 2016-12-13 | 2021-03-12 | 奥的斯电梯公司 | 可打开扩展面板及具有其的电梯吊顶，轿厢和系统 |
| CN111606879A (zh) * | 2020-05-25 | 2020-09-01 | 安徽金禾实业股份有限公司 | 一锅法制备2-羟甲基-3-烷氧基-4h-吡喃-4-酮的方法 |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3491122A (en) * | 1966-09-14 | 1970-01-20 | Monsanto Co | Synthesis of 4-pyrones |
| US3547912A (en) * | 1968-07-29 | 1970-12-15 | American Home Prod | Derivatives of 2h-pyran-3(6h)-ones and preparation thereof |
| JPS5145565B1 (fi) * | 1968-10-12 | 1976-12-04 | ||
| US3621063A (en) * | 1968-12-24 | 1971-11-16 | Monsanto Co | Unsaturated acyclic ketones |
| US3832357A (en) * | 1971-05-26 | 1974-08-27 | Daicel Ltd | Process for preparation of 3-hydroxy-2-alkyl-4-pyrone |
| JPS5212166A (en) * | 1975-07-17 | 1977-01-29 | Tatsuya Shono | Process for preparation of 4-pyron derivatives |
| IE42789B1 (en) * | 1975-08-28 | 1980-10-22 | Pfizer | Preparation of gamma-pyrones |
| CA1095921A (en) | 1976-08-02 | 1981-02-17 | Thomas M. Brennan | Preparation of gamma-pyrones |
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1977
- 1977-06-06 CA CA279,922A patent/CA1095921A/en not_active Expired
- 1977-06-08 NZ NZ184342A patent/NZ184342A/xx unknown
- 1977-06-09 GR GR53666A patent/GR68938B/el unknown
- 1977-06-13 YU YU1469/77A patent/YU40166B/xx unknown
- 1977-06-15 MX MX775807U patent/MX4597E/es unknown
- 1977-06-16 SE SE7707035A patent/SE433079B/xx not_active IP Right Cessation
- 1977-06-16 JP JP7157277A patent/JPS5318578A/ja active Granted
- 1977-06-17 PH PH19887A patent/PH13557A/en unknown
- 1977-06-20 BR BR7703970A patent/BR7703970A/pt unknown
- 1977-06-21 NL NLAANVRAGE7706811,A patent/NL170955C/xx not_active IP Right Cessation
- 1977-06-21 FI FI771934A patent/FI72722C/fi not_active IP Right Cessation
- 1977-06-21 BE BE1008209A patent/BE855965A/xx not_active IP Right Cessation
- 1977-06-22 DE DE2760221A patent/DE2760221C2/de not_active Expired
- 1977-06-22 ES ES459994A patent/ES459994A1/es not_active Expired
- 1977-06-22 CH CH765877A patent/CH625798A5/fr not_active IP Right Cessation
- 1977-06-22 LU LU77600A patent/LU77600A1/xx unknown
- 1977-06-22 NO NO772193A patent/NO150561C/no unknown
- 1977-06-22 PT PT66694A patent/PT66694B/pt unknown
- 1977-06-22 TR TR19652A patent/TR19652A/xx unknown
- 1977-06-22 EG EG371/77A patent/EG13080A/xx active
- 1977-06-22 DK DK276177A patent/DK153483C/da active
- 1977-06-22 AT AT0440477A patent/AT362790B/de not_active IP Right Cessation
- 1977-06-22 DE DE2760220A patent/DE2760220C2/de not_active Expired
- 1977-06-22 DE DE2728499A patent/DE2728499C2/de not_active Expired
- 1977-06-23 DD DD7700199657A patent/DD132494A5/xx not_active IP Right Cessation
- 1977-06-23 AR AR268164A patent/AR216080A1/es active
- 1977-06-23 FR FR7719250A patent/FR2372821A1/fr active Granted
- 1977-06-23 IT IT49950/77A patent/IT1106258B/it active
- 1977-07-14 CS CS774705A patent/CS203921B2/cs unknown
- 1977-07-14 BG BG7942607A patent/BG28989A4/xx unknown
- 1977-07-14 BG BG042608A patent/BG29136A3/xx unknown
- 1977-07-14 BG BG7742606A patent/BG28988A4/xx unknown
- 1977-07-14 BG BG036892A patent/BG28849A3/xx unknown
- 1977-07-20 RO RO7799830A patent/RO78953A/ro unknown
- 1977-07-20 RO RO7791106A patent/RO74367A/ro unknown
- 1977-07-20 RO RO7799826A patent/RO78952A/ro unknown
- 1977-07-20 RO RO7799825A patent/RO78951A2/ro unknown
- 1977-07-21 GB GB4241/78A patent/GB1538373A/en not_active Expired
- 1977-07-21 SU SU772508256A patent/SU955859A3/ru active
- 1977-07-21 GB GB4242/78A patent/GB1538374A/en not_active Expired
- 1977-07-21 GB GB4240/78A patent/GB1538372A/en not_active Expired
- 1977-07-21 PL PL1977199798A patent/PL115586B1/pl unknown
- 1977-07-21 HU HU82155A patent/HU185686B/hu unknown
- 1977-07-21 HU HU82156A patent/HU186026B/hu unknown
- 1977-07-21 PL PL1977215006A patent/PL115497B1/pl unknown
- 1977-07-21 HU HU77PI584A patent/HU180040B/hu unknown
- 1977-07-21 PL PL21500877A patent/PL215008A1/xx unknown
- 1977-07-21 GB GB4243/78A patent/GB1538375A/en not_active Expired
- 1977-07-21 GB GB30759/77A patent/GB1538371A/en not_active Expired
- 1977-07-21 PL PL1977215007A patent/PL115496B1/pl unknown
- 1977-07-21 HU HU82157A patent/HU185687B/hu unknown
- 1977-07-29 IE IE586/79A patent/IE45644B1/en not_active IP Right Cessation
- 1977-07-29 IE IE587/79A patent/IE45645B1/en not_active IP Right Cessation
- 1977-07-29 IE IE585/79A patent/IE45643B1/en not_active IP Right Cessation
- 1977-07-29 IE IE1587/77A patent/IE45641B1/en not_active IP Right Cessation
- 1977-07-29 IE IE584/79A patent/IE45642B1/en not_active IP Right Cessation
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1978
- 1978-02-03 PH PH20745A patent/PH15185A/en unknown
- 1978-02-03 PH PH20746A patent/PH13926A/en unknown
- 1978-05-25 JP JP6282178A patent/JPS5436270A/ja active Granted
- 1978-05-25 JP JP6281778A patent/JPS5436266A/ja active Pending
- 1978-05-25 JP JP6281878A patent/JPS5436267A/ja active Granted
- 1978-05-25 JP JP6281978A patent/JPS5436268A/ja active Pending
- 1978-05-25 JP JP53062820A patent/JPS5814433B2/ja not_active Expired
- 1978-05-25 JP JP6282278A patent/JPS5436271A/ja active Granted
- 1978-06-07 CS CS783705A patent/CS203922B2/cs unknown
- 1978-06-07 CS CS783706A patent/CS203923B2/cs unknown
- 1978-06-13 ES ES470746A patent/ES470746A1/es not_active Expired
- 1978-06-13 ES ES470745A patent/ES470745A1/es not_active Expired
- 1978-06-13 ES ES470744A patent/ES470744A1/es not_active Expired
- 1978-06-13 ES ES470743A patent/ES470743A1/es not_active Expired
- 1978-07-05 SU SU782631651A patent/SU1015826A3/ru active
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1979
- 1979-02-01 PH PH22149A patent/PH14625A/en unknown
- 1979-02-01 PH PH22150A patent/PH13874A/en unknown
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1980
- 1980-03-06 AT AT0124480A patent/AT363470B/de not_active IP Right Cessation
- 1980-03-06 AT AT0124380A patent/AT364356B/de not_active IP Right Cessation
- 1980-10-24 CA CA363,273A patent/CA1110254A/en not_active Expired
- 1980-10-24 CA CA000363274A patent/CA1117541A/en not_active Expired
- 1980-10-30 CH CH808580A patent/CH625235A5/fr not_active IP Right Cessation
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1981
- 1981-02-20 CH CH116081A patent/CH626357A5/fr not_active IP Right Cessation
- 1981-02-20 CH CH116181A patent/CH626358A5/fr not_active IP Right Cessation
- 1981-07-02 HK HK303/81A patent/HK30381A/en unknown
- 1981-07-02 HK HK306/81A patent/HK30681A/xx unknown
- 1981-07-02 HK HK307/81A patent/HK30781A/xx unknown
- 1981-07-02 HK HK305/81A patent/HK30581A/xx unknown
- 1981-07-02 HK HK304/81A patent/HK30481A/xx unknown
- 1981-12-09 NL NLAANVRAGE8105540,A patent/NL182805C/xx not_active IP Right Cessation
- 1981-12-09 NL NLAANVRAGE8105539,A patent/NL182478C/xx not_active IP Right Cessation
- 1981-12-09 NL NLAANVRAGE8105538,A patent/NL182477C/xx not_active IP Right Cessation
- 1981-12-09 NL NLAANVRAGE8105537,A patent/NL182476C/xx not_active IP Right Cessation
- 1981-12-30 MY MY267/81A patent/MY8100267A/xx unknown
- 1981-12-30 MY MY262/81A patent/MY8100262A/xx unknown
- 1981-12-30 MY MY287/81A patent/MY8100287A/xx unknown
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1982
- 1982-01-29 SE SE8200519A patent/SE445042B/sv not_active IP Right Cessation
- 1982-01-29 SE SE8200520A patent/SE444564B/sv not_active IP Right Cessation
- 1982-01-29 SE SE8200521A patent/SE452616B/sv not_active IP Right Cessation
- 1982-01-29 SE SE8200522A patent/SE444565B/sv not_active IP Right Cessation
- 1982-01-29 SE SE8200518A patent/SE445041B/sv not_active IP Right Cessation
- 1982-06-03 NO NO821849A patent/NO150559C/no unknown
- 1982-06-03 NO NO821847A patent/NO150042C/no unknown
- 1982-06-03 NO NO821848A patent/NO150043C/no unknown
- 1982-06-03 NO NO821851A patent/NO150560C/no unknown
- 1982-06-03 NO NO821850A patent/NO821850L/no unknown
- 1982-12-07 YU YU02703/82A patent/YU270382A/xx unknown
- 1982-12-13 YU YU2747/82A patent/YU42613B/xx unknown
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1983
- 1983-05-16 FI FI831703A patent/FI73424C/fi not_active IP Right Cessation
- 1983-05-16 FI FI831702A patent/FI72720C/fi not_active IP Right Cessation
- 1983-05-16 FI FI831704A patent/FI72721C/fi not_active IP Right Cessation
- 1983-05-16 FI FI831700A patent/FI72119C/fi not_active IP Right Cessation
- 1983-05-16 FI FI831701A patent/FI72723C/fi not_active IP Right Cessation
- 1983-08-08 YU YU1663/83A patent/YU43190B/xx unknown
- 1983-11-18 NO NO834236A patent/NO151365C/no unknown
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1986
- 1986-07-09 DK DK325986A patent/DK153484C/da active
- 1986-07-09 DK DK326086A patent/DK153401C/da not_active IP Right Cessation
- 1986-07-09 DK DK326186A patent/DK154079C/da active
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| PC | Transfer of assignment of patent |
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| MA | Patent expired |
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