Kayayyaki
4- (4-Methoxyphenyl) -2-butanone
Tsarin Tsari
Na zahiri
Bayyanar: ruwa mara launi zuwa rawaya mai mai
Yawa: 1.046 g/ml a 25 ° C (lit.)
Matsayin narkewa: 8 ° C (lit.)
Matsayin tafasa: 152-153 ° C / 15 mmHg (lit.)
Fihirisar magana: n20/D 1.519 (lit.)
Wurin walƙiya:> 230 ° F
Bayanan Tsaro
Lambar Kwastam: 2914299090
Yawan Maido Harajin Fitarwa (%): 13%
Aikace-aikace
Bayani;4- (4-methoxyphenyl) -2-butanone za a iya amfani dashi don shirya 4-p-hydroxyphenyl-2-butanone, 4-p-hydroxyphenyl-2-butanone, wanda kuma aka sani da rasberi ketone, pendant ketone, rasberi ketone (raspberryketone) , Nomura et al.a Japan a cikin 1918, an gano shi a cikin 1957 a matsayin babban kayan ƙanshi a cikin raspberries.
Tsarin samarwa: Rasberi ketone da dimethyl sulfate azaman albarkatun ƙasa, halayen etherification don samarwa.
Shiri:
1. Condensation dauki tare da aniseed aldehyde, acetone da sodium hydroxide a matsayin albarkatun kasa, bayan da aka kammala dauki, da ƙananan alkali Layer aka rabu, da babba man ne neutralized, wanke da distilled don dawo da sauran ƙarfi don samun aniseed butenone;
2. ƙara anisyl butenone zuwa barasa mai anhydrous, ƙara mai kara kuzari da motsa halayen tare da hydrogen, distill kuma dawo da sauran ƙarfi bayan amsawa.
Bayan amsawar, an dawo da barasa mai anhydrous ta hanyar distillation don samun samfurin anysyl acetone na hydrogenated.
Ana iya amfani da Anisyl acetone don shirya rasberi ketone, gami da takamaiman matakai masu zuwa: anisyl acetone, potassium hydroxide, N , N
Ana ƙara dimethylacetamide a busassun tetra] vial sanye take da ma'aunin zafi da sanyio, faɗuwar mazurari, da bututu mai ɗaukar nauyi, mai zafi don narkewa, sannan a ƙarƙashin motsawa.
A ƙarƙashin yanayi masu motsawa, an ƙara demethyl reagent a hankali a hankali kuma an bar mai ƙarfi ya narke gaba ɗaya.An canja wurin cakuda zuwa wani autoclave a ƙarƙashin kariyar iskar gas kuma an mayar da martani a ƙarƙashin matsin lamba.A dauki cakuda da aka neutralized zuwa tsaka tsaki, da kuma man lokaci da aka fitar da kuma distilled a karkashin rage matsa lamba shirya rasberi ketone danye.An narkar da danyen samfurin ketone na rasberi tare da kaushi da crystallized don samun samfurin ketone mai tsabta.Yawan abin da aka ƙirƙira ya kasance
85.2%, kuma samfurin ya kasance 98 5%.
Anisylacetone ruwa ne mara launi zuwa kodadde mai launin rawaya mai kamshi na fure da 'ya'yan itace.Matsakaici ne na dobutamine, wanda a yanzu ana amfani da shi azaman kayan yaji don shirya ɗanɗano iri-iri, kuma ana amfani dashi a cikin abubuwan sha masu laushi, abubuwan sha masu sanyi, alewa, gasasshen abinci da abinci na pudding.Yana da in mun gwada da high-sa yaji.Hakanan yana da jan hankali ga kwari irin su scarabs.
