Lihlahisoa
4-(4-Methoxyphenyl) -2-butanone
Foromo ea Sebopeho
Ea nama
Ponahalo: metsi a mafura a se nang mmala ho isa ho a mosehla
Boima: 1.046 g/mL ho 25 ° C (lit.)
Sebaka se qhibilihang: 8 ° C (lit.)
Sebaka se belang: 152-153 ° C/15 mmHg (lit.)
Lenane la refractive: n20/D 1.519 (lit.)
Sebaka sa ho benya:>230 ° F
Lintlha tsa Polokeho
Meetlo Code: 2914299090
Sekhahla sa Puseletso ea Lekhetho la Thepantle(%):13%
Kopo
Kakaretso;4-(4-methoxyphenyl) -2-butanone e ka sebelisoa ho lokisa 4-p-hydroxyphenyl-2-butanone, 4-p-hydroxyphenyl-2-butanone, e tsejoang hape e le raspberry ketone, pendant ketone, raspberry ketone (raspberryketone) , e fumanoeng ke Nomura et al.Japane ka 1918, e ile ea tsejoa ka 1957 e le ntho e ka sehloohong ea monko o monate ho tse tala.
Mokhoa oa tlhahiso: Raspberry ketone le dimethyl sulfate e le lisebelisoa tse tala, karabelo ea etherification ho hlahisa.
Boitokisetso:
1. karabelo ea condensation ka aniseed aldehyde, acetone le sodium hydroxide e le lisebelisoa tse tala, ka mor'a hore karabelo e phethoe, lera le ka tlaase la alkali le arohane, 'me oli e ka holimo e fokotsehile, e hlatsuoe le ho silafatsoa ho tsosolosa solvent ho fumana butenone ea aniseed;
2. eketsa anisyl butenone ho joala bo anhydrous, eketsa catalyst 'me u tsose karabelo ka hydrogen, distill le ho khutlisa solvent ka mor'a karabelo.
Kamora karabelo, joala ba anhydrous bo ile ba khutlisoa ka distillation ho fumana sehlahisoa sa hydrogenated anisyl acetone.
Anisyl acetone e ka sebelisoa ho lokisa raspberry ketone, ho kenyelletsa le mehato e tobileng e latelang: anisyl acetone, hydroxide potassium, N, N.
dimethylacetamide e kenngoa ka pitseng e ommeng ea tetra] e nang le thermometer, funeele e theohang le tšupu e kolobisang, e futhumetseng hore e qhibilihe, ebe e hlohlelletsoa.
Tlas'a maemo a susumetsang, demethyl reagent e ile ea eketsoa butle butle 'me e tiileng e ile ea sala hore e qhalane ka ho feletseng.Motsoako o ile oa fetisetsoa ho autoclave tlas'a tšireletso ea khase ea inert 'me e itšoara tlas'a khatello.Motsoako oa karabelo o ne o sa nke lehlakore, 'me karolo ea oli e ile ea ntšoa le ho silafatsoa tlas'a khatello e fokotsehileng ho lokisa raspberry ketone crude.Sehlahisoa se tala sa raspberry ketone se ile sa qhibiliha ka solvent le kristale ho fumana sehlahisoa se hloekileng sa raspberry ketone.Sehlahisoa sa ho qaptjoa e ne e
85.2%, 'me bohloeki ba sehlahisoa e ne e le 98 5%.
Anisylacetone ke mokelikeli o mosehla o mosehla o se nang 'mala ho isa ho o mosehla o nang le monko o monate oa lipalesa le litholoana.Ke karolo e ka hare ea dobutamine, eo hona joale e sebelisoang haholo-holo e le linoko ho lokisa litatso tse fapa-fapaneng tsa litholoana, 'me e sebelisoa ho lino-mapholi, lino tse batang, lipompong, lijo tse halikiloeng le lijo tsa pudding.Ke senoko se batlang se le maemong a holimo.E boetse e hohela likokoanyana tse kang scarabs.
