Epoxides muaj ntau dua reactive dua li cov ethers yooj yim vim rau lub nplhaib strain. Nucleophiles tua cov electrophilic C ntawm C-O daim ntawv cog lus ua rau nws tawg, ua rau lub nplhaib qhib. Qhib lub nplhaib relieves lub nplhaib strain. … Epoxides tuaj yeem cuam tshuam nrog ntau yam nucleophiles.
Puas yog cov tshuaj tiv thaiv epoxide SN2?
Epoxides nkag mus rau cov tshuaj tiv thaiv uas lub nplhaib epoxide qhib los ntawm nucleophiles. Cov tshuaj tiv thaiv ntawm hom no yog SN2 cov tshuaj tiv thaiv uasepoxide oxygen ua haujlwm raws lipab pawg tawm. … Epoxides muaj zog heev vim lawv, zoo li lawv cov pa roj carbon analogs, cov cyclopropanes, muaj lub kaum sab xis loj (Sec. 7.5B).
Cov tshuaj tiv thaiv epoxide siv rau dab tsi?
Epoxides tuaj yeem siv txhawm rau sib sau cov polymers hu ua epoxies, uas yog cov nplaum zoo heev thiab cov txheej txheem zoo. Feem ntau cov epoxy resin yog tsim los ntawm cov tshuaj tiv thaiv ntawm epichlorohydrin nrog bisphenol A.
YPuas epoxides hnov mob nrog dej?
Nyob rau hauv cov organic molecules, lub nplhaib epoxide tuaj yeem ua haujlwmnrog dej molecule nyob rau hauv muaj cov kua qaub los yog hauv paus catalyst thiab ces lub nplhaib qhib [64].
Puas epoxide hnov mob nrog cawv?
Cov tshuaj tiv thaiv ntawm cawv lossis phenol nrog ethylene oxide, ethoxylation, yog dav siv los tsim cov surfactants: ROH + n C2H 4 O → R(OC2H4) OH. Nrog anhydrides, epoxides muab polyesters.
