Methoxides yog cov ntsev organic thiab cov alkoxides yooj yim tshaj plaws. Sodium methoxide thiab potassium methoxide tau siv dav, txawm tias lwm yam hlau-cation sib txawv xws li lithium methoxide, rubidium methoxide, thiab cesium methoxide kuj muaj.
methoxide ion yog dab tsi?
Cov methoxide ion, -OCH 3, yogtus nquag catalyst rau kev tsim cov methyl esters. Nws yog cov tshuaj no uas tawm tsam cov triglyceride molecules thiab tsim cov methyl esters. Nws yog regenerated thaum kawg ntawm txhua kauj ruam cov tshuaj tiv thaiv thaum ib tug hydrogen ion yog stripped los ntawm ib tug nyob ze methanol molecule.
methoxide ua li cas?
Sodium methoxide yog cov tshuaj sib xyaw nrog cov mis CH3ONa. Cov khoom dawb no, uas yog tsim los ntawm deprotonation ntawm methanol, yog cov khoom siv dav siv hauv kev lag luam thiab hauv chav kuaj. Nws kuj yog ib tug txaus ntshai caustic puag.
Puas yog methoxide muaj zog nucleophile?
Methoxide (methoxide ion; MeO-): CH3O-; conjugate puag ntawm methanol. Lub hauv paus muaj zog (feem ntau siv hauv E2 thiab enolate cov tshuaj tiv thaiv) thiab a zoo nucleophile.
Puas yog methoxide yog lub hauv paus?
Lub npe tshuaj rau CH3O yog methoxide. Nws yog lub hauv paus tsim los ntawm methanollos ntawm kev hloov cov hydroxyl hydrogen nrog cov hlau. Lub hauv paus muaj zog thiab zoo nucleophile. Methoxide muaj ib atom ntawm carbon, peb atoms ntawm hydrogen thiab ib atom ntawm oxygen.
