CS200896B1 - P-cyclpentylacrylophenone and process for preparing thereof - Google Patents

P-cyclpentylacrylophenone and process for preparing thereof Download PDF

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Publication number
CS200896B1
CS200896B1 CS782078A CS782078A CS200896B1 CS 200896 B1 CS200896 B1 CS 200896B1 CS 782078 A CS782078 A CS 782078A CS 782078 A CS782078 A CS 782078A CS 200896 B1 CS200896 B1 CS 200896B1
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CS
Czechoslovakia
Prior art keywords
preparing
cyclpentylacrylophenone
preparation
ether
cyclopentyl
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CS782078A
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Czech (cs)
Slovak (sk)
Inventor
Ivan Lukac
Stefan Chmela
Ivan Zvara
Pavol Hrdlovic
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Ivan Lukac
Stefan Chmela
Ivan Zvara
Pavol Hrdlovic
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Application filed by Ivan Lukac, Stefan Chmela, Ivan Zvara, Pavol Hrdlovic filed Critical Ivan Lukac
Priority to CS782078A priority Critical patent/CS200896B1/en
Publication of CS200896B1 publication Critical patent/CS200896B1/en

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Description

Postup přípravy akrylofenónov dehydrochloráciou β-chlórpropiofenónov je obecný postup ich přípravy, avšak p-cyklopentylakrylfenón nebol doteraz připravený.The process for preparing acryophenones by dehydrochlorination of β-chloropropiophenones is a general process for their preparation, but p-cyclopentylacrylphenone has not yet been prepared.

Spfiaob přípravy novej zlúčeniny je založený na dehydrochlorácii p-cyklopentyl-β-chlór- , propiofenonu alkalickým octanom v alkoholickom prostředí.The preparation of the novel compound is based on dehydrochlorination of p-cyclopentyl-β-chloro-propiophenone with an alkali acetate in an alcoholic medium.

Uvedená zlúčenina sa mfiže použiť ako medziprodukt organických syntéz, alebo na přípravu polymérov so špeciálnymi vlastnosťami.Said compound can be used as an intermediate of organic syntheses or for the preparation of polymers with special properties.

Příklad g p-cyklopentyl- β-chlórpropiofenónu sa rozpustilo v 40 ml etanolu a zahrialo sa skoro do varu. K roztoku sa přidal horúci roztok 11,8 g CH^COONa . 3 HgO v 40 ml etanolu.Example g of β-cyclopentyl-β-chloropropiophenone was dissolved in 40 ml of ethanol and heated to near boiling point. To the solution was added a hot solution of 11.8 g of CH 2 COONa. 3 HgO in 40 ml ethanol.

Zmes sa povarile intenzívně 2 až 3 minúty a nechala ochladiť. Po ochladení nebola přítomná východisková látka. Z reakčnej zmesi sa etanol odpařil za vákua. Odparok sa zriedil vodou a extrahoval do éteru. Éterový extrekt sa přepral roztokom kyslého uhličitanu sodného a vo200 896The mixture was boiled vigorously for 2 to 3 minutes and allowed to cool. After cooling, no starting material was present. From the reaction mixture, ethanol was evaporated in vacuo. The residue was diluted with water and extracted into ether. The ether extract was washed with a solution of sodium bicarbonate and 200 896

200 001 dou. Sušil ea e bezvodým síranom sodným. Po vákuovom odpaření éteru odparek sa dělil na krátkom atípei silikagélu 0=4 cm, dížka 5 m s eluentom petroléter : benzén 4 : 1. Po vákuovom zahuštění eluétu aa získalo 7,6 g (64 %) skoro bezfarebnej polymerizovateTnej kvapaliny, ktorej Struktúra bola potvrdená NMB a ifi spektrami. p-eyklopentylakrylofenón bezprostředná po přípravě neobsahoval polymér.200 001 dou. Dried and dried with anhydrous sodium sulfate. After evaporation of the ether in vacuo, the residue was separated on a short silica gel pad of 0 = 4 cm, 5 m in length with the petroleum ether: benzene 4: 1 eluent. NMB and ifi spectra. The β-cyclopentylacrylophenone immediately after preparation did not contain polymer.

PR E D M El VXNÁLBZUPR E D M El VXNALBZU

Claims (2)

PR E D M El VXNÁLBZUPR E D M El VXNALBZU 1. p-cyklcpentylakrylofenón obecného vzorea:1. p-cyclopentylacrylophenone of the general formula: 0¾ = CH - C0¾ = CH-C 2, Spfisob přípravy p-cyklopentylakrylofenónu podlá bodu 1, vyznačujúci aa tým, že p-cyklopentyl-/3-chlórpropiofenón aa dehydrochloruje alkalickým octanom v alkoholickom prostředí.2. The process according to claim 1, wherein the .beta.-cyclopentyl-.beta.-chloropropiophenone aa is dehydrochlorinated with alkaline acetate in an alcoholic medium.
CS782078A 1978-11-29 1978-11-29 P-cyclpentylacrylophenone and process for preparing thereof CS200896B1 (en)

Priority Applications (1)

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CS782078A CS200896B1 (en) 1978-11-29 1978-11-29 P-cyclpentylacrylophenone and process for preparing thereof

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CS782078A CS200896B1 (en) 1978-11-29 1978-11-29 P-cyclpentylacrylophenone and process for preparing thereof

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CS200896B1 true CS200896B1 (en) 1980-10-31

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