Yog tias qhov carbocation thib ob yog viinal rau tertiary carbon bearing hydrogen, 1, 2- hydride hloov yuav tsum tshwm sim. Yog tias qhov carbocation thib ob yog vicinal rau quaternary carbon, 1, 2-alkyl hloov yuav tsum tshwm sim. Txoj cai dav dav hauv kev hloov pauv ntawm alkyl yog: qhov me me alkyl hloov pauv yog qhov hloov pauv hloov.
Puas hloov hydride tshwm sim hauv sn2?
Cov kuab tshuaj yog cov nucleophile hauv ntau SN 1 cov tshuaj tiv thaiv. Qhov no yog hu ua solvolysis cov tshuaj tiv thaiv. 1, 2-Hydride hloov thiab 1, 2-methyl hloov yuav tshwm sim hauv SN1 kev tshwm sim yog tias qhov kev hloov kho ua rau muaj kev ruaj khov carbocation. Cov kev hloov kho tshiab no tsis tshwm sim rau qhov laj thawj pom tseeb hauv SN 2 cov tshuaj tiv thaiv.
Puas hloov hydride tshwm sim hauv SN1?
Peb tuaj yeem pom qhov tshwm sim ntawm hydride hloov hauv solvolysis (SN1) cov tshuaj tiv thaiv zoo li cov piv txwv hauv qab no. Raws li qhia hauv cov txheej txheem hauv qab no, cov polarized carbon-chlorine bonds yog heterolytically tawg los tsim cov tshuaj chloride ion thiab carbocation.
Puas muaj kev hloov kho hauv SN1?
Nco ntsoov tias thawj kauj ruam hauv SN1 yog pab pawg tawm mus muab cov carbocation. … Yog li ntawd, rov kho dua tuaj yeem tshwm sim los muab qhov ruaj khov tertiary carbocation, uas yog tom qab tawm tsam los ntawm nucleophile (dej hauv qhov no).
Thaum twg muaj peev xwm hloov hydride tshwm sim?
Yog tias qhov carbocation thib ob yog viinal rau tertiary carbon bearing hydrogen, 1, 2- hydride hloov yuav tsum tshwm sim. Yog tias qhov carbocation thib ob yog vicinal rau quaternary carbon, 1, 2-alkyl hloov yuav tsum tshwm sim. Txoj cai dav dav hauv kev hloov pauv ntawm alkyl yog: qhov me me alkyl hloov pauv yog qhov hloov pauv hloov.
