Thaum haloalkanes tau rhuab nrog cov nyiaj qhuav oxides nws forms symmetrical ethers nrog rau asymmetric ethers los ntawm kev hloov pauv bi-molecular nucleophilic cov tshuaj tiv thaiv.
Thaum alkyl halide yog rhuab nrog qhuav Ag2O nws tsim?
Alkyl halide ntawm cov tshuaj tiv thaiv nrog qhuav nyiaj oxide muab ether.
Yuav ua li cas thaum Ag2O cua sov?
Thaum nyiaj oxide raug cua sov, nws decomposes raws li cov tshuaj tiv thaiv: 2 Ag2O (s) à 4 Ag (s) + O2 (g) Yog 2.48 g ntawm Ag2O yog rhuab thiab O2 roj uas tsim los ntawm cov tshuaj tiv thaiv yog sau nyob rau hauv ib tug evacuated flask, lub siab ntawm O2 roj yog hais tias lub ntim ntawm lub hwj yog 850 mL thiab cov roj kub yog 25 ° C yog _atm.
Thaum alkyl halide reacts nrog alkoxide cov khoom yog?
Peb nco qab tias alkoxide reacts nrog thawj alkyl halide hauv SN2 cov tshuaj tiv thaiv uas hu ua Williamson ether synthesis (Tshooj 17.6). Peb tuaj yeem faib cov tshuaj tiv thaiv no ua "alkylation ntawm oxygen." Cov tshuaj tiv thaiv alkylation zoo sib xws tuaj yeem tshwm sim nrog carboxylate li nucleophile. Cov khoom yog an ester.
Qhov twg alkyl halide sai dua hauv sn2 cov tshuaj tiv thaiv?
3. Reaction Rate Of The SN2 Reaction Is Fastest For Small Alkyl Halides (Methyl > Primary > Secondary >> Tertiary) Thaum kawg, nco ntsoov hloov pauv hauv Cov qauv hloov pauv ntawm alkyl halide ua rau muaj kev hloov pauv loj hauv covtus nqi ntawm cov tshuaj tiv thaiv.
