Potassium tert butoxide puas tuaj yeem npaj hauv qab dej?
Potassium tert butoxide puas tuaj yeem npaj hauv qab dej?

Video: Potassium tert butoxide puas tuaj yeem npaj hauv qab dej?

Video: Potassium tert butoxide puas tuaj yeem npaj hauv qab dej?
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-butyl cawv / hexane los yog cyclohexane nyob rau hauv lub sump ntawm kem, uas thoob plaws hauv cov tshuaj tiv thaiv yog khaws cia ntawm boiling kub. Cov poov tshuaj tert . - butoxide yog tam sim no nyob rau hauv lub sump li 10 mus rau 18 ~ tov nyob rau hauv ntshiab, dej dawb tert.

Hauv qhov no, puas yog potassium tert butoxide muaj zog Nucleophile?

Cov tert - butoxide hom yog nws tus kheej pab raws li ib tug muaj zog , tsis- nucleophilic puag hauv organic chemistry. Nws tsis yog li muaj zog raws li amide bases, eg. lithium diisopropylamide, tab sis muaj zog dua tshaj poov tshuaj hydroxide.

Puas yog tert butoxide yog Nucleophile zoo? Kev piav qhia: Zoo Nucleophiles Ntawd Yog Lub Hauv Paus Tsis Muaj Zog (Qhov no yog txoj hauv kev nruj dua hais tias cov hauv paus tsis muaj zog tsis ua E2 cov tshuaj tiv thaiv). Hauv qhov sib piv, lub hauv paus loj hauv qab no ( tert - butoxide ion) yog lub hauv paus muaj zog tab sis cov neeg pluag nucleophile vim nws qhov kev cuam tshuam loj heev, yog li E2 cov tshuaj tiv thaiv muaj ntau dua li SN2.

Ib sab saum toj no, tert butoxide ua li cas?

tert - butoxide tuaj yeem siv los tsim cov "tsawg hloov" alkenes hauv kev tshem tawm cov tshuaj tiv thaiv (E2, tshwj xeeb). Feem ntau, kev tshem tawm cov tshuaj tiv thaiv nyiam cov "ntau hloov" alkene - uas yog , the Zaitsev product.

Vim li cas tert butoxide yog lub hauv paus muaj zog?

Nyob rau hauv (CH3) 3C-OH, conjugate acid ntawm lub tert - butoxide ion, qhov + kuv cuam tshuam rau cov cawv carbon yog peb zaug uas nyob rau hauv CH3-CH2-OH, conjugate acid ntawm ethoxide ion uas tsuas muaj ib pawg methyl. Thiab lub conjugate puag ntawm lub weaker acid yog ib txwm muaj zog dua tshaj li ntawm muaj zog dua kua qaub.

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