Ngwaahịa
4- (4-Methoxyphenyl) -2-butanone
Usoro nhazi
Anụ ahụ
Ọdịdị: mmiri mmiri na-acha odo odo na-acha odo odo
Njupụta: 1.046 g/mL na 25 Celsius C (ọkụ.)
Ebe mgbaze: 8 Celsius (ọkụ)
Ebe esi mmiri: 152-153 ° C/15 mmHg (ọkụ)
Ndekọ ntụgharị: n20/D 1.519 (ọkụ)
Ebe ọkụ ọkụ:>230ºF
Data nchekwa
Koodu mpaghara:: 2914299090
Ọnụego nkwụghachi ụtụ nke mbupu (%): 13%
Ngwa
Nchịkọta;4- (4-methoxyphenyl) -2-butanone nwere ike iji kwadebe 4-p-hydroxyphenyl-2-butanone, 4-p-hydroxyphenyl-2-butanone, nke a makwaara dị ka raspberry ketone, pendant ketone, raspberry ketone (raspberryketone) , chọpụtara site Nomura et al.na Japan na 1918, a chọpụtara na 1957 dị ka isi ihe na-esi ísì ụtọ na raspberries.
Usoro mmepụta: Raspberry ketone na dimethyl sulfate dị ka akụrụngwa, mmeghachi omume etherification iji mepụta.
Nkwadebe:
1. mmeghachi omume condensation na aniseed aldehyde, acetone na sodium hydroxide dị ka akụrụngwa, mgbe mmeghachi omume ahụ gwụchara, a na-ekewa oyi akwa alkali dị ala, a na-ewepụkwa mmanụ dị elu, na-asacha na distilled iji weghachite ihe mgbaze iji nweta anise butenone;
2. tinye anisyl butenone na mmanya anhydrous, tinye ihe na-akpali akpali ma kpalie mmeghachi omume na hydrogen, distill na weghachite ihe mgbaze mgbe mmeghachi omume ahụ gasịrị.
Mgbe mmeghachi omume ahụ gasịrị, a naghachitere mmanya na-egbu egbu site na distillation iji nweta ngwaahịa anysyl acetone nke hydrogenated.
Enwere ike iji Anisyl acetone kwadebe ketone rasberi, gụnyere usoro ndị a kapịrị ọnụ: anisyl acetone, potassium hydroxide, N , N
A na-agbakwunye dimethylacetamide na akọrọ tetra] vial nke nwere temometa, olulu mmiri, na tube condensing, na-ekpo ọkụ ka ọ gbazee, mgbe ahụ, na-akpali akpali.
N'okpuru ọnọdụ mkpali, a na-agbakwunye demethyl reagent jiri nwayọọ nwayọọ na-agbada ma hapụ ihe siri ike ka ọ gbazee kpamkpam.A na-ebufe ngwakọta ahụ na autoclave n'okpuru nchebe gas inert ma meghachi omume n'okpuru nrụgide.A na-ewepụ ngwakọta mmeghachi omume ahụ ka ọ ghara ịnọpụ iche, a na-ewepụta oge mmanụ ahụ ma gbanye ya n'okpuru nrụgide dị ntakịrị iji kwadebe rasberi ketone crude.A gbazere ngwaahịa crude nke ketone raspberry na ihe mgbaze na kristal iji nweta ngwaahịa dị ọcha nke ketone rasberi.Mkpụrụ nke mepụtara bụ
85.2%, na ịdị ọcha ngwaahịa bụ 98 5%.
Anisylacetone bụ mmiri mmiri na-acha odo odo na-acha odo odo na-esi ísì ụtọ na-esi ísì ụtọ.Ọ bụ n'etiti dobutamine, nke a na-ejikarị eme ihe ugbu a dị ka ose iji kwadebe ụtọ mkpụrụ osisi dị iche iche, a na-ejikwa ya na ihe ọṅụṅụ dị nro, ihe ọṅụṅụ oyi, swiiti, nri esiri esi na nri pudding.Ọ bụ ose dị oke elu.Ọ bụkwa ihe na-adọrọ mmasị ụmụ ahụhụ dị ka scarabs.
