3 4-Dimethylbenzophenone (CAS# 2571-39-3)
| Likhoutu tsa Kotsi | 36/37/38 - Ho halefisa mahlo, tsamaiso ea ho hema le letlalo. |
| Tlhaloso ea Tšireletseho | 24/25 - Qoba ho kopana le letlalo le mahlo. |
Selelekela
3,4-Dimethylbenzophenone, e tsejoang hape e le ketocarbonate kapa Benzoin. E latelang ke tlhaloso ea sebopeho sa eona, ts'ebeliso, tokiso le tlhaiso-leseling ea polokeho:
Tlhaho:
-Ponahalo: 3,4-Dimethylbenzophenone ke kristale e tšoeu e tiileng.
-Solubility: E batla e sa qhibilihe ka metsing, 'me e na le ho qhibiliha ho hoholo ho li-solvents tse kang ethanol le dimethylformamide.
-Ntho e qhibilihang: Sebaka sa ho qhibiliha sa 3,4-dimethylbenzophenone se ka bang 132-134 likhato tsa Celsius.
-Mehaho ea lik'hemik'hale: Ke reagent ea electrophilic e ka kenyang letsoho liketsong tse sa tšoaneng tse kang ho thehoa ha hydrogen bond, ho fokotsa oxidation-reduction reaction pakeng tsa ketone carbon le methyl.
Sebelisa:
- 3,4-Dimethyl benzophenone e sebelisoa haholo-holo e le reagent bakeng sa liketso tsa organic synthesis.
-E ka sebelisoa e le sesebelisoa sa electrophilic ho kenya letsoho liketsong tsa ho eketsoa ha electrophilic, ketone carbonate sebopeho le liketso tse ling.
-E ka boela ea sebelisoa e le photosensitizer bakeng sa lithography, pholiso e bobebe le likarolo tse ling.
Mokhoa oa ho itokisa:
Mokhoa o mong oa ho lokisa -3,4-dimethyl benzophenone ke karabelo ea motsoako oa barone. Mehato ea karabelo ke e latelang: Pele, styrene e ts'oaroa ka bromine e feteletseng tlas'a khanya kapa lebone la ultraviolet ho etsa β-bromostyrene. Joale β-bromostyrene e etsoa ka hydroxide (mohlala, NaOH) ho theha 3,4-dimethylbenzophenone.
-Mokhoa o mong oa ho itokisa ke ho itšoara ka acetophenone le sodium bromide tlas'a maemo a alkaline ho hlahisa 3,4-dimethyl benzophenone.
Lintlha tsa Tšireletseho:
- 3,4-Dimethylbenzophenone ha e na chefo e fokolang.
- Qoba ho kopana le letlalo le ho hema ha u sebelisa.
-Ruyi ka ntle ho kopana le letlalo, e lokela ho hlatsoa hang-hang ka metsi a mangata.
-Haeba o hema, suthela hang-hang sebakeng se nang le moea o motle.
-Ho khothaletsoa ho roala liatlana tse sireletsang le lisebelisoa tse phefumolohang nakong ea ts'ebetso.
-Ha u sebelisa le ho boloka, ka kopo latela mekhoa e sireletsehileng ea ts'ebetso 'me u e behe moo bana ba ke keng ba e fumana.
