3 4-Dimethylbenzophenone (CAS# 2571-39-3)
| Iikhowudi zoMngcipheko | 36/37/38 – Ukucaphukisa amehlo, inkqubo yokuphefumula kunye nolusu. |
| Inkcazelo yoKhuseleko | 24/25-Kuphephe ukudibana nolusu kunye namehlo. |
Intshayelelo
I-3,4-Dimethylbenzophenone, eyaziwa ngokuba yi-ketocarbonate okanye i-Benzoin. Oku kulandelayo yinkcazo yobume bayo, ukusetyenziswa, ukulungiswa kunye nolwazi lokhuseleko:
Indalo:
-Ukubonakala: I-3,4-Dimethylbenzophenone yinto eqinileyo ye-crystalline emhlophe.
-I-Solubility: Iphantse i-insoluble emanzini, kwaye ine-solubility ephezulu kwii-solvents eziphilayo ezifana ne-ethanol kunye ne-dimethylformamide.
-Indawo yokunyibilika: Indawo enyibilikayo ye-3,4-dimethylbenzophenone malunga ne-132-134 degrees Celsius.
-Iipropati zeMichiza: I-reagent ye-electrophilic enokuthi ithathe inxaxheba kwiindlela ezahlukeneyo zokuphendula ezifana ne-hydrogen bond formation, i-oxidation-reduction reaction between ketone carbon and methyl.
Sebenzisa:
- I-3,4-Dimethyl benzophenone isetyenziswa kakhulu njenge-reagent ye-organic synthesis reactions.
-Ingasetyenziselwa njenge-reagent ye-electrophilic ukuthatha inxaxheba kwiimpendulo zokongezwa kwe-electrophilic, i-ketone carbonate formation kunye nezinye iimpendulo.
-Inokusetyenziswa kwakhona njenge-photosensitizer ye-lithography, ukunyanga ukukhanya kunye nezinye iindawo.
Indlela yokulungiselela:
Enye indlela yokulungiswa kwe--3,4-dimethyl benzophenone yi-reaction synthesis ye-barone. Amanyathelo okusabela alandelayo: Okokuqala, i-styrene iphendulwa nge-bromine engaphezulu phantsi kokukhanya okanye ukukhanya kwe-ultraviolet ukwenza i-β-bromostyrene. I-β-bromostyrene iphinda iphendule nge-hydroxide (umzekelo, i-NaOH) ukwenza i-3,4-dimethylbenzophenone.
-Enye indlela yokulungisa i-acetophenone kunye ne-sodium bromide phantsi kweemeko ze-alkali ukuvelisa i-3,4-dimethyl benzophenone.
Ulwazi ngoKhuseleko:
- I-3,4-Dimethylbenzophenone ayinabungozi kangako.
-Kuphephe ukudibana kwesikhumba kunye nokuphefumla xa usebenzisa.
-Ruyi ukudibana kwangaphandle kwesikhumba, kufuneka uhlambulule ngokukhawuleza ngamanzi amaninzi.
-Ukuba uphefumle umoya, khawuleza uye kwindawo engenamoya.
-Kucetyiswa ukuba unxibe iiglavu ezifanelekileyo zokukhusela kunye nezixhobo zokuphefumula ngexesha lokusebenza.
-Xa usebenzisa kwaye ugcina, nceda ulandele iinkqubo zokusebenza ezikhuselekileyo kwaye uzibeke ngaphandle kokufikelela kubantwana.
