PL213678B1 - 2-thienylanalog of nerolidol - Google Patents

2-thienylanalog of nerolidol

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Publication number
PL213678B1
PL213678B1 PL389606A PL38960609A PL213678B1 PL 213678 B1 PL213678 B1 PL 213678B1 PL 389606 A PL389606 A PL 389606A PL 38960609 A PL38960609 A PL 38960609A PL 213678 B1 PL213678 B1 PL 213678B1
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PL
Poland
Prior art keywords
nerolidol
formula
reaction
thiophen
thienylanalog
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Application number
PL389606A
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Polish (pl)
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PL389606A1 (en
Inventor
Bonikowski Radoslaw
Sikora Magdalena
Kula Józef
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Politechnika Lódzka
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Publication date
Application filed by Politechnika Lódzka filed Critical Politechnika Lódzka
Priority to PL389606A priority Critical patent/PL213678B1/en
Publication of PL389606A1 publication Critical patent/PL389606A1/en
Publication of PL213678B1 publication Critical patent/PL213678B1/en

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Description

Przedmiotem wynalazku jest nowy związek, 2-tienyloanalog nerolidolu, o przyjemnym, trwałym warzywnym zapachu, podobnym do zapachu korzenia selera i liści pietruszki.The present invention relates to a new compound, 2-thienyl analogue of nerolidol, with a pleasant, persistent vegetable aroma similar to that of celery root and parsley leaves.

Nerolidol jest acyklicznym seskwiterpenowym alkoholem występującym w przyrodzie, między innymi w olejku cabreuva i jest powszechnie stosowany w kompozycjach zapachowych i aromatach spożywczych.Nerolidol is an acyclic sesquiterpene alcohol found in nature, including in cabreuva oil, and is widely used in fragrance compositions and food flavorings.

Znany jest z opisu patentowego PL nr 198 495 fiiryloanalog nerolidolu, czyli 9-furan-2-ylo-3,7-dimetylonona-1,6-dien-3-ol, o delikatnym, kwiatowym zapachu, podobnym do zapachu nerolidolu.It is known from the Polish patent description PL No. 198,495 of a nerolidol pheryl analog, i.e. 9-furan-2-yl-3,7-dimethylone-1,6-dien-3-ol, with a delicate, floral fragrance similar to that of nerolidol.

Natomiast z opisu patentowego PL nr 198 497 jest znany metylofuryloanalog nerolidolu, czyli 3,7-dimetylo-9-(5-metylofuran-2-ylo)nona-1,6-dien-3-ol, o przyjemnym, delikatnym, kwiatowym zapachu, podobnym do zapachu nerolidolu.On the other hand, the patent PL No. 198,497 describes the methylfuryl analogue of nerolidol, i.e. 3,7-dimethyl-9- (5-methylfuran-2-yl) nona-1,6-diene-3-ol, with a pleasant, delicate, floral fragrance , similar to the smell of nerolidol.

Przedmiotem wynalazku jest nowy związek, 9-tiofen-2-ylo-3,7-dimetylonona-1,6-dien-3-ol o wzorze 1:The subject of the invention is a new compound, 9-thiophen-2-yl-3,7-dimethylone-1,6-dien-3-ol of formula 1:

stanowiący 2-tienyloanalog nerolidolu, w którym reszta izobutenylowa nerolidolu została zastąpiona podstawnikiem tiofenowym.which is the 2-thienyl analogue of nerolidol in which the isobutenyl moiety of the nerolidol has been replaced with the thiophene substituent.

Nowy związek stanowi mieszaninę izomerów geometrycznych E, Z w stosunku 4:3, charakteryzuje się przyjemnym, trwałym warzywnym zapachem, podobnym do zapachu selera i liści pietruszki. Znajduje zastosowanie jako składnik aromatów spożywczych, zwłaszcza typu maggi. Właściwości fizyko-chemiczne i spektralne nowego związku są następujące: temperatura wrzenia 399-410 K przy ciśnieniu 0,63 kPa;The new compound is a mixture of E, Z geometric isomers in the ratio of 4: 3, it is characterized by a pleasant, persistent vegetable smell, similar to the smell of celery and parsley leaves. It is used as a component of food flavors, especially of the maggi type. The physico-chemical and spectral properties of the new compound are as follows: boiling point 399-410 K at a pressure of 0.63 kPa;

MS (izomer trans): 232 (M+-18) (6), 110 (13), 107 (30), 98 (16), 97 (100), 93 (32), 71 (32), 55 (31), 53 (20), 43 (35);MS (trans isomer): 232 (M + -18) (6), 110 (13), 107 (30), 98 (16), 97 (100), 93 (32), 71 (32), 55 (31 ), 53 (20), 43 (35);

MS (izomer cis): 232 (M+-18) (7), 134 (10), 110 (11), 107 (21), 97 (100), 93 (24), 71 (28), 55 (24), 53 (17), 43 (23);MS (cis isomer): 232 (M + -18) (7), 134 (10), 110 (11), 107 (21), 97 (100), 93 (24), 71 (28), 55 (24 ), 53 (17), 43 (23);

1H NMR (CDCl3) (izomeru cis/trans) δ: 7,09 (m, 1H), 6,91 (m, 1H), 6,77 (m, 1H), 5,89 (2dd, J = 17,5, 10,50, 1H), 5,22 (m, 1H), 5,16 (m, 2H), 5,05 (m, 1H), 2,90 (m, 2H), 2,36 (m, 2H), 1,71 i 1,64 (2s, 3H), 1,27 i 1,24 (2s, 3H); 1 H NMR (CDCl3) (cis-isomer / trans) δ: 7.09 (m, 1H), 6.91 (m, 1H), 6.77 (m, 1H), 5.89 (2dd, J = 17 , 5, 10.50, 1H), 5.22 (m, 1H), 5.16 (m, 2H), 5.05 (m, 1H), 2.90 (m, 2H), 2.36 ( m, 2H), 1.71 and 1.64 (2s, 3H), 1.27 and 1.24 (2s, 3H);

13C NMR (CDCl3) (izomeru cis/trans) δ: 144,17, 133,60, 126,23, 126,11, 125,98, 125,04, 123,71, 123,55, 122,45, 41,83, 41,55, 41,21, 33,70, 28,18, 27,82, 27,21, 27,15, 22,83, 22,25, 22,07,15,52. 13 C NMR (CDCl3) (cis-isomer / trans) δ: 144.17, 133.60, 126.23, 126.11, 125.98, 125.04, 123.71, 123.55, 122.45, 41.83, 41.55, 41.21, 33.70, 28.18, 27.82, 27.21, 27.15, 22.83, 22.25, 22.07, 15.52.

Nowy związek, 9-tiofen-2-ylo-3,7-dimetylonona-1,6-dien-3-ol o wzorze 1, w postaci mieszaniny izomerów cis/trans otrzymuje się z 5-tiofen-2-ylo-3-metylopent-1-en-3-olu o wzorze 2:The new compound 9-thiophen-2-yl-3,7-dimethylone-1,6-dien-3-ol of formula 1, in the form of a mixture of cis / trans isomers, is obtained from 5-thiophen-2-yl-3- methylpent-1-en-3-ol of formula 2:

który ogrzewa się z acetylooctanem etylu, powstały w wyniku tej reakcji keton poddaje się reakcji Grignard'a z bromkiem winylomagnezowym w środowisku tetrahydrofuranu i po zakończeniu tej reakcji do środowiska reakcji dodaje się nasycony roztwór chlorku amonowego, produkt ekstrahuje się toluenem, przemywa wodą i po odparowaniu z niego rozpuszczalnika, poddaje się go destylacji pod zmniejszonym ciśnieniem, w wyniku czego otrzymuje się związek o wzorze 1 z wydajnością 63% w przeliczeniu na związek o wzorze 2.which is heated with ethyl acetoacetate, the ketone formed as a result of this reaction is subjected to a Grignard reaction with vinylmagnesium bromide in a medium of tetrahydrofuran, and after completion of this reaction, a saturated solution of ammonium chloride is added to the reaction medium, the product is extracted with toluene, washed with water and after evaporation solvent therefrom, it is subjected to distillation under reduced pressure to afford the compound of formula 1 in a yield of 63% based on the compound of formula 2.

Przedmiot wynalazku ilustruje poniższy przykład.The following example illustrates the subject of the invention.

P r z y k ł a dP r z k ł a d

Mieszaninę 0,1 mola 5-tiofen-2-ylo-3-metylopent-1-en-3-olu o wzorze 2 i 0,2 mola acetylooctanu etylu ogrzewano do 453 K w czasie 3 godzin. W trakcie reakcji wydzielał się ditlenek węgla i oddestyPL 213 678 B1 lowywał etanol. Po zakończeniu reakcji odparowano nadmiar acetylooctanu etylu i produkt reakcji w postaci ketonu destylowano w temperaturze 396-402 K przy ciśnieniu 0,50 kPa. 0,048 mola otrzymanego ketonu wkroplono w czasie 2 godzin do roztworu 0,05 mola bromku winylomagnezowego w 50 ml tetrahydrofuranu utrzymując temperaturę około 308 K. Po zakończeniu reakcji dodano nasycony roztwór chlorku amonowego i produkt ekstrahowano 3 porcjami toluenu. Po przemyciu wodą i odparowaniu rozpuszczalnika produkt destylowano w temperaturze 399-410 K przy ciśnieniu 0,62 kPa. Otrzymano mieszaninę izomerów cis/trans 9-tiofen-2-ylo-3,7-dimetylonona-1,6-dien-3-olu o wzorze 1 z wydajnością 63% w przeliczeniu na związek wyjściowy o wzorze 2, o wyżej podanych właściwościach fizyko-chemicznych oraz spektralnych.A mixture of 0.1 mol of 5-thiophen-2-yl-3-methylpent-1-en-3-ol of the formula 2 and 0.2 mol of ethyl acetoacetate was heated to 453 K over 3 hours. During the reaction, carbon dioxide was evolved and ethanol was distilled off. After the completion of the reaction, excess ethyl acetoacetate was evaporated and the reaction product, in the form of a ketone, was distilled at 396-402 K under a pressure of 0.50 kPa. 0.048 mol of the obtained ketone was added dropwise over 2 hours to a solution of 0.05 mol of vinylmagnesium bromide in 50 ml of tetrahydrofuran while maintaining the temperature at about 308 K. After the reaction was completed, saturated ammonium chloride solution was added and the product was extracted with 3 portions of toluene. After washing with water and evaporating the solvent, the product was distilled at a temperature of 399-410 K and a pressure of 0.62 kPa. A mixture of cis / trans isomers of 9-thiophen-2-yl-3,7-dimethylone-1,6-dien-3-ol of formula 1 was obtained with the yield of 63% based on the starting compound of formula 2, with the above-mentioned physical properties. -chemical and spectral.

Claims (1)

Nowy związek, 9-tiofen-2-ylo-3,7-dimetylonona-1,6-dien-3-ol o wzorze 1:The new compound, 9-thiophen-2-yl-3,7-dimethylone-1,6-dien-3-ol of formula 1: WZÓR 1 stanowiący 2-tienyloanalog nerolidolu.FORMULA 1 being the 2-thienyl analogue of nerolidol.
PL389606A 2009-11-17 2009-11-17 2-thienylanalog of nerolidol PL213678B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL389606A PL213678B1 (en) 2009-11-17 2009-11-17 2-thienylanalog of nerolidol

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL389606A PL213678B1 (en) 2009-11-17 2009-11-17 2-thienylanalog of nerolidol

Publications (2)

Publication Number Publication Date
PL389606A1 PL389606A1 (en) 2011-05-23
PL213678B1 true PL213678B1 (en) 2013-04-30

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