Qhov sib txawv tseem ceeb ntawm imine thiab Schiff puag yog tias imine yog cov organic molecule uas muaj cov pa roj carbon-nitrogen ob daim ntawv cog lus nrog peb pawg alkyl lossis aryl txuas rau nws. Lub caij no, Schiff puag yog ib chav kawm ntawm imine uas muaj carbon-nitrogen ob daim ntawv cog lus nrog tsuas yog alkyl lossis aryl pawg (tsis muaj hydrogen atom txuas).
Imines yog cov organic tebchaw uas muaj C=N ob daim ntawv cog lus. Ntawm no, cov pa roj carbon atom txuas rau ob pawg uas yog alkyl / aryl pawg lossis hydrogen atoms. Cov nitrogen atom tseem txuas nrog rau pawg alkyl lossis aryl.
Imine yog dab tsi?
Lub imine yog cov organic compound uas muaj C=N ua haujlwm pab pawg. Txij li thaum ib qho carbon atom tuaj yeem tsim plaub cov ntawv cog lus, cov pa roj carbon atom no tuaj yeem tsim ob lwm cov ntawv cog lus nrog lwm cov khoom siv. Cov kev hloov pauv no yog pawg alkyl, pawg aryl lossis hydrogen atom thiab ib pawg alkyl / aryl. Ib lub atom nitrogen tuaj yeem tsim peb daim ntawv cog lus. Yog li ntawd, nitrogen atom nyob rau hauv lub imine tuaj yeem tsim lwm daim ntawv cog lus nrog lwm cov khoom hloov. Qhov hloov pauv no tuaj yeem yog hydrogen atom lossis alkyl / aryl pawg. Cov qauv dav dav ntawm imine yog raws li hauv qab no:
Daim duab 01: Cov Qauv Txheej Txheem ntawm Pawg Neeg Ua Haujlwm Imine
Lub sij hawm imine tau qhia los ntawm tus kws tshawb fawb Albert Ladenburg. Yog tias cov pa oxygen atom ntawm aldehyde lossis ketone hloov los ntawm pawg N-R (qhov twg N yog nitrogen atom, thiab R yog ib pawg alkyl / aryl), qhov sib xyaw peb tau txais yog aldimine lossis ketimine. Ntawm no, yog tias pawg R yog hydrogen atom, ces peb tuaj yeem muab lub npe sib xyaw ua thawj aldimine lossis thawj ketamine. Txawm li cas los xij, yog tias pawg R yog ib pawg hydrocarbyl, ces qhov sib xyaw ua ke yog cov qauv thib ob.
Thaum xav txog qhov kev npaj ntawm imines, txoj kev ib txwm yog cov condensation ntawm thawj amines lossis aldehydes. Ketones feem ntau siv tsawg dua rau qhov kev npaj no. Lub synthesis ntawm ib qho imine tshwm sim los ntawm nucleophilic ntxiv. Tsis tas li, peb tuaj yeem siv lwm txoj hauv kev xws li condensation ntawm carbon acids nyob rau hauv lub xub ntiag ntawm nitroso tebchaw, lub cev qhuav dej ntawm hemiaminals, thiab lwm yam.
Schiff Base yog dab tsi?
Schiff puag yog ib hom imine uas tsuas muaj alkyl lossis aryl pawg txuas nrog cov pa roj carbon thiab nitrogen atoms. Yog li ntawd, tsis muaj hydrogen atoms txuas rau carbon thiab nitrogen atoms ntawm imine functional pawg.
Feem ntau, cov tshuaj no zoo ib yam li cov ketamines theem nrab lossis cov aldimines theem nrab. Cov no muaj txiaj ntsig zoo li ligands uas koom nrog hauv kev tsim cov kev sib koom ua ke. Peb tuaj yeem npaj Schiff hauv paus los ntawm aliphatic lossis aromatic amines nyob rau hauv lub xub ntiag ntawm ib pawg carbonyl ntawm nucleophilic ntxiv tshuaj tiv thaiv.
Qhov txawv ntawm Imine thiab Schiff Base yog dab tsi?
Imines yog cov organic tebchaw uas muaj C=N daim ntawv cog lus. Muaj ob pawg lwm pawg (alkyl, aryl lossis hydrogen) txuas rau carbon atom thiab nitrogen atom muaj ib pawg alkyl lossis aryl txuas rau nws. Schiff puag yog hom imine. Yog li ntawd, qhov sib txawv tseem ceeb ntawm imine thiab Schiff puag yog tias ib qho imine yog cov organic molecule uas muaj cov pa roj carbon-nitrogen ob daim ntawv cog lus uas muaj peb pawg alkyl lossis aryl txuas rau nws, whereas Schiff puag yog sub-chav kawm ntawm imine uas muaj carbon-nitrogen. ob daim ntawv cog lus txuas nrog tsuas yog alkyl lossis aryl pawg (tsis muaj hydrogen atom txuas).
Hauv qab infographic qhia cov ncauj lus kom ntxaws ntxiv txog qhov sib txawv ntawm imine thiab Schiff puag.
Summary – Imine vs Schiff Base
Imines yog cov organic tebchaw uas muaj C=N daim ntawv cog lus. Muaj ob pawg lwm pawg (alkyl, aryl lossis hydrogen) txuas rau carbon atom thiab nitrogen atom muaj ib pawg alkyl lossis aryl txuas rau nws. Schiff puag yog hom imine. Yog li ntawd, qhov sib txawv tseem ceeb ntawm imine thiab Schiff puag yog tias ib qho imine yog cov organic molecule uas muaj carbon-nitrogen ob daim ntawv cog lus uas muaj peb pawg alkyl lossis aryl txuas rau nws whereas Schiff puag yog sub-chav kawm ntawm imine uas muaj carbon-nitrogen ob npaug. daim ntawv cog lus nrog tsuas yog alkyl lossis aryl pawg (tsis muaj hydrogen atom txuas).
