Electrophilic aromatic hloov pauv yog cov tshuaj tiv thaiv organic uas yog ib qho atom uas txuas rau lub cev muaj ntxhiab (feem ntau hydrogen) yog hloov los ntawm electrophile.
Electrophilic aromatic hloov pauv piv txwv yog dab tsi?
Nitration thiab sulfonation ntawm benzene yog ob qho piv txwv ntawm electrophilic aromatic hloov. Cov nitronium ion (NO2+) thiab sulfur trioxide (SO3) yog cov electrophiles thiab tus kheej. React nrog benzene muab nitrobenzene thiab benzenesulfonic acid feem.
Qhov twg cuam tshuam los ntawm kev hloov pauv ntawm aromatic electrophilic hloov pauv?
Kev sim tau pom tias cov khoom hloov pauv ntawm lub nplhaib benzene tuaj yeem cuam tshuam qhov tshwm sim hauv qhov muaj txiaj ntsig Piv txwv li, hydroxy lossis methoxy hloov pauv nce tus nqi ntawm kev hloov pauv electrophilic txog kaum txhiab npaug, raws li tau piav qhia los ntawm rooj plaub ntawm anisole hauv kev ua qauv qhia virtual (saum toj no).
Electrophile nyob rau hauv kev hloov electrophilic yog dab tsi?
Hauv kev hloov pauv ntawm electrophilic hauv aliphatic compounds, ib qho electrophile hloov chaw ua haujlwm. Cov tshuaj tiv thaiv no zoo ib yam li nucleophilic aliphatic hloov pauv qhov twg cov reactant yog nucleophile es tsis yog electrophile.
Cov tshuaj tiv thaiv electrophilic hloov pauv yog dab tsi muab piv txwv?
Raws li cov aromaticity ntawm benzene tsis cuam tshuam rau hauv cov tshuaj tiv thaiv, cov tshuaj tiv thaiv yog qhov tshwm sim ntawm qhov xwm txheej. Cov piv txwv tseem ceeb ntawm electrophilic hloov pauv cov tshuaj tiv thaiv ntawm benzene yog nitration, sulfonation, halogenation, Friedel Craft's alkylation thiab acylation, thiab lwm yam.
