Benzene reacts nrog chlorine lossis brominenyob rau hauv lub xub ntiag ntawm catalyst, hloov ib qho ntawm hydrogen atoms ntawm lub nplhaib los ntawm chlorine los yog bromine atom. Cov tshuaj tiv thaiv tshwm sim ntawm chav tsev kub. … Nws reacts nrog ib co ntawm cov tshuaj chlorine los yog bromine los tsim hlau (III) chloride, FeCl3, los yog hlau (III) bromide, FeBr3.
Vim li cas benzene tsis hnov mob nrog bromine?
Lub rau lub electrons nyob rau hauv π-system saum toj no thiab hauv qab lub dav hlau ntawm lub nplhaib benzene yog delocalised tshaj lub rau carbon atoms, yog li cov electron ceev yog qis dua. Lub bromine tsis tuaj yeem polarized txaus los ua haujlwm, thiab qis dua electron ntom ntom tsis nyiam cov electrophile li ntawd.
Puas yog benzene nkag siab los ntawm bromine?
Benzene yog qhov cuam tshuam rau cov tshuaj tiv thaiv ntxiv radical dua li qhov sib ntxiv ntawm electrophilic. Peb twb tau sau tseg tias benzene tsis hnov mob nrog cov tshuaj chlorine lossis brominethaum tsis muaj catalyst thiab cua sov.
Yuav ua li cas thaum benzene reacts nrog dej bromine?
Benzene tsis hnov mob nrog cov tshuaj tiv thaiv electrophilic ntxiv li no nws tau dhau mus kuaj dej bromine, raws li lawv muaj delocalised pi bonds. Yog li ntawd, nws tsis decolourise cov dej bromine.
