Terminal alpha hydroxy ketone muab qhov kev ntsuas zoo rau qhov no raws li cov tshuaj no oxidises lawv rau aldehydes Nws kuj muab kev kuaj zoo rau chloroform thiab acetylene. Cov qauv muaj aldehyde uas muab qhov zoo tollen qhov kev sim. … Qhov reagent no muab qhov kev sim zoo rau cov ntxhiab aldehyde thiab.
Vim li cas alpha hydroxy ketone muab tus lej kuaj?
α-hydroxy ketones muaj peev xwm muab qhov zoo Tollens 'test txij thaum α- hydroxy ketones muaj peev xwm ua tautomerize rau aldehydes, thiab cov aldehyde muab cov Tollens 'test. Ib qho α-hydroxy ketone uas tsis tuaj yeem tautomerize rau aldehyde yuav tsis muab qhov zoo Tollens 'test, zoo li benzoin.
Puas tag nrho cov ketones muab tus lej kuaj?
Tollens 'test, tseem hu ua silver-mirror test, yog ib qho kev kuaj sim zoo siv los paub qhov txawv ntawm ib qho aldehyde thiab ketone. Nws siv qhov tseeb tias aldehydes tau nkag siab oxidized (saib oxidation), whereas ketones tsis yog.
Vim li cas ketones tsis muab tus lej ntsuas?
Cov reagent yuav oxidize ib qho aldehyde compound rau nws cov carboxylic acid sib xws. Cov tshuaj tiv thaiv kuj txo cov nyiaj ions tam sim no nyob rau hauv Tollen's Reagent rau hlau nyiaj. … Txawm li cas los xij, ketones yuav tsis tuaj yeem oxidize Tollen's reagent thiab yog li nws yuav tsis tsim ib daim iav nyiaj hauv lub raj kuaj.
Yuav ua li cas Alpha hydroxy acids tau los ntawm aldehydes thiab ketones?
Racemic α-hydroxyCov kua qaub yog cov txheej txheem npaj los ntawm ntxiv ntawm hydrogen cyanide rau ketone lossis aldehyde, ua raws li acidic hydrolysis ntawm nitrile kev ua haujlwm ntawm cov khoom lag luam cyanohydrin.
