Gomberg cov tshuaj tiv thaiv yuav xa mus rau: Gomberg-Bachmann cov tshuaj tiv thaiv, cov tshuaj tiv thaiv aryl-aryl coupling ntawm diazonium ntsev. Gomberg-Free radical cov tshuaj tiv thaiv, cov tshuaj tiv thaiv uas triphenylmethyl radical tau npaj los ntawm kev kho triphenylmethyl chloride nrog a hlau zoo li Nyiaj lossis Zinc nyob rau hauv muaj cov diethyl ether lossis benzene.
Biphenyl npaj Gomberg cov tshuaj tiv thaiv li cas?
Lub arene compound 1 (ntawm no benzene) yog txuas nrog lub hauv paus nrog diazonium ntsev 2 mus rau biaryl 3 los ntawm qhov nruab nrab aryl radical. Piv txwv li, p-bromobiphenyl tuaj yeem npaj los ntawm 4-bromoaniline thiab benzene: BrC 6 H 4 NH 2 + C6H6 → BrC6H 4-C6H.
Pschorr nplhaib kaw yog dab tsi?
Cov tshuaj tiv thaiv Pschorr yog classical nplhaib kaw txheej txheem rau kev tsim cov tshuab polycyclic uas ob lub aryl moieties tau koom ua ke. Nws sawv cev rau tus choj uas txuas diazonium ion chemistry nrog PAH synthesis.
pawg diazonium yog dab tsi?
Diazonium tebchaw los yog diazonium ntsev yog ib pawg ntawm cov organic tebchaw sib koom ib pawg ua haujlwm R−N + 2 X − qhov twg R tuaj yeem yog pawg organic, xws li alkyl lossis aryl, thiab X yog ib qho inorganic lossis organic anion, xws li halogen.
Vim li cas diazonium ntsev tsis ruaj khov?
Kev ruaj ntseg ntawm diazonium ntsev - txhais
Qhov tsis ruaj khov ntawm alkanediazonium ntsevyog vim lawv txoj kev nyiam tshem tawm qhov tshwj xeeb ruaj khov molecule ntawm nitrogen los tsim cov carbocations i.e, aliphaticdiazoniums altR-N≡NX−→ AlkylcarbocationR++ N≡N + X−.
