(E)-Methyl 4-bromocrotonate (CAS# 6000-00-6)
Kotsi le Polokeho
| Matšoao a Kotsi | Xi - Ea halefisang |
| Likhoutu tsa Kotsi | R37/38 – E tenang tsamaiso ya ho hema le letlalo. R41 – Kotsi ya tshenyo e kgolo mahlong R36/37/38 – Ho tena mahlo, tsamaiso ya 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. S39 - Apara ts'ireletso ea mahlo / sefahleho. |
| WGK Jeremane | 3 |
| RTECS | GQ3120000 |
| LIKHOUTU FLUKA BRAND F | 8-9 |
| Khoutu ea HS | 29161900 |
Selelekela
Trans-4-bromo-2-butenoic acid methyl ester ke mokelikeli o se nang mebala o nang le monko o khethehileng. E na le boima ba hoo e ka bang 1.49g/cm3, ntlha e belang e ka bang 171-172°C, le lehlaseli le ka bang 67°C. Ha e qhibilihe ka metsing ka mocheso oa kamore, empa e kopane le metsoako ea tlhaho e kang ethanol, ether, joalo-joalo.
Sebelisa:
Trans-4-bromo-2-butenoic acid methyl ester e sebelisoa haholo-holo e le karolo e ka hare ho organic synthesis reactions. E ka sebelisoa bakeng sa ho kopanya metsoako e meng ea lintho tse phelang, mohlala bakeng sa ho kopanya metsoako ea k'hemistri ea meriana le k'hemistri ea chefo e bolaeang likokoanyana.
Mokhoa oa ho itokisa:
Trans-4-bromo-2-butenoic acid methyl ester hangata e lokisoa ke karabelo ea bromination le esterification reaction. Butene e qala ho itšoara ka bromine ho fana ka 4-bromo-2-butene, e ntan'o tšeloa ka methanol ho fana ka trans-4-bromo-2-butenoic acid methyl ester.
Lintlha tsa Tšireletseho:
Trans-4-bromo-2-butenoic acid methyl ester ke mofuta oa organic solvent le lik'hemik'hale tse tala, tse nang le kotsi e itseng. E ea halefisa ebile e senya, 'me ho kopana le letlalo, mahlo kapa mokhoa oa ho hema ho ka baka ho teneha le ho ntša kotsi. Ho kopana ka ho toba ho lokela ho qojoa nakong ea tšebeliso, 'me tšireletso e nepahetseng ea phefumoloho le liaparo tse sireletsang li lokela ho nkoa. Ho feta moo, tlhokomelo e lokela ho nkoa ho qoba ho kopana le li-oxidants le li-acids tse matla nakong ea polokelo ho thibela liketso tse kotsi. Haeba o hloka ho sebelisa komporo ena, ka kopo sebetsa sebakeng se sireletsehileng 'me u latele mekhoa e sireletsehileng ea ts'ebetso.
