trans-2-Hexen-1-Al Diethyl Acetal(CAS#54306-00-2)
| Matšoao a Kotsi | Xi - Ea halefisang |
| Likhoutu tsa Kotsi | 36/37/38 - Ho halefisa mahlo, tsamaiso ea ho hema le letlalo. |
| Tlhaloso ea Tšireletseho | S26 - Ha u kopana le mahlo, hlatsoa hang-hang ka metsi a mangata 'me u batle keletso ea bongaka. S36/37/39 - Apara liaparo tse loketseng tsa tšireletso, liatlana le tšireletso ea mahlo / sefahleho. |
| WGK Jeremane | 3 |
trans-2-Hexen-1-Al Diethyl Acetal(CAS#54306-00-2) tsebisa
thepa e bonahalang
Ponahalo: Hangata e bonahala e le mokelikeli o hlakileng o se nang 'mala ho isa ho o mosehla o khanyang, o etsang hore ho be bonolo haholoanyane ho sebetsa lits'ebetsong tsa tlhahiso ea lik'hemik'hale tse kang lipalangoang tsa thepa le ho kopanya metsoako.
Monko: E na le monko o ikhethang oa tholoana, o hloekileng le oa tlhaho. Tšobotsi ena e hohetse tlhokomelo e ngata tšimong ea monko o monate, 'me e ka sebelisoa e le thepa ea bohlokoa ea ho kopanya tatso ea fruity.
Solubility: E ka qhibiliha hantle ka har'a metsoako e mengata ea lintho tse phelang, tse kang ethanol, ether, acetone, joalo-joalo, e etsa hore ho be bonolo ho kopanya le ho kopana le li-reactants tse ling ho li-organic synthesis reaction systems; Ho qhibiliha ha metsi ho batla ho lekanyelitsoe, e leng se lumellanang le molao oa ho qhibiliha ha metsoako ea tlhaho e nang le khabone e phahameng.
Sebaka se belang: E na le sebaka se itseng sa ho bela, e leng motheo oa bohlokoa bakeng sa karohano le ts'ebetso ea tlhoekiso e kang distillation le tokiso. Sebaka se belang sa lisampole tse nang le lihloeki tse fapaneng li ka fapana hanyane, 'me boleng le bohloeki ba sehlahisoa bo ka hlahlojoa esale pele ka ho lekanya ntlha e belang ka nepo.
4, Lintho tsa lik'hemik'hale
Acetal hydrolysis reaction: Tlas'a maemo a acidic, sebopeho sa diethylacetal ka molek'hule se tloaetse ho hydrolysis, se hlahisa lihlopha tsa aldehyde le ethanol hape. Tšobotsi ena hangata e sebelisoa ho organic synthesis bakeng sa phetoho ea sehlopha se sebetsang kapa ts'ireletso ea sehlopha sa aldehyde, 'me e lokolloa ka nako e loketseng ho nka karolo liketsong tse latelang.
Maikutlo a tlatsetso e habeli: Carbon carbon double bond e ka sebetsa joalo ka libaka tse sebetsang 'me ea kena tšebetsong ka hydrogen, halogens, joalo-joalo. Ka ho laola maemo a karabelo le litekanyetso tsa reagent, letoto la li-derivatives li ka lokisoa ka mokhoa o ikhethileng, tsa matlafatsa mefuta-futa ea metsoako.
Karabelo ea oxidation: Tlas'a ts'ebetso ea li-oxidant tse nepahetseng, limolek'hule li ka ba le oxidation, ho robeha habeli, kapa oxidation e eketsehileng ea lihlopha tsa aldehyde ho hlahisa lihlahisoa tse tsamaellanang tsa oxidation, ho fana ka tsela ea ho kopanya metsoako e meng e rarahaneng.
5. Mokhoa oa ho kopanya
Tsela e tloaelehileng ea maiketsetso ke ho qala ka trans-2-hexenal le ho e arabela ka anhydrous ethanol ka pel'a li-catalysts tsa acidic tse kang khase e omileng ea hydrogen chloride, p-toluenesulfonic acid, joalo-joalo. mefuta e mengata ea mocheso o tlase ho mocheso oa kamore, ho thibela liketso tse ka thōko ho etsahala; Ka nako e ts'oanang, hoa hlokahala ho netefatsa tikoloho e se nang metsi, kaha ho ba teng ha metsi ho ka fetola karabelo ea aldol le ho ama chai. Ka mor'a hore karabelo e phethoe, sekontiri se atisa ho se nke lehlakore ka tharollo ea alkaline, ebe se aroloa ke distillation, rectification le mekhoa e meng ea ho fumana lihlahisoa tse lebisitsoeng tse phahameng.
