Qhov sib txawv tseem ceeb ntawm aldol ntxiv thiab aldol condensation yog tias aldol ntxiv yog hais txog qhov sib ntxiv ntawm ketone enolate lossis aldehyde enolate rau carbonyl compound, whereas aldol condensation yog hais txog kev poob dej molecule los ntawm cov khoom aldol. los tsim ib qho α, β-unsaturated carbonyl compound.
Aldol cov tshuaj tiv thaiv yog ib hom kev sib txuas cov tshuaj tiv thaiv uas muaj ob kauj ruam: aldol ntxiv thiab aldol condensation. Cov tshuaj tiv thaiv no tseem ceeb heev hauv cov organic synthesis rau kev tsim cov tshuaj carbon-carbon chemical bond. Hauv cov tshuaj tiv thaiv no, ob lub ntsiab lus carbonyl sib xyaw ua ke thiab tsim ib qho tshiab beta-hydroxyl carbonyl compound. Cov khoom no hu ua aldol; Yog li, cov tshuaj tiv thaiv hu ua aldol cov tshuaj tiv thaiv.
Aldol Ntxiv yog dab tsi?
Aldol ntxiv yog cov tshuaj tiv thaiv organic uas suav nrog ntxiv ntawm ketone enolate rau ib qho aldehyde. Lub sij hawm aldol yog kev sib xyaw ntawm aldehyde thiab cawv. Hauv cov tshuaj tiv thaiv no, alpha carbon ntawm ib qho enolate ntawm ib qho aldehyde los yog ketone reacts nrog cov carbonyl pawg ntawm lwm cov organic compound kom muab ib tug beta-hydroxy aldehyde los yog beta-hydroxy ketone.
Cov tshuaj tiv thaiv aldol tuaj yeem tshwm sim hauv ob txoj hauv kev: nyob rau hauv cov kua qaub lossis hauv cov xwm txheej yooj yim. Lub hauv paus los yog cov kua qaub ua ib qho catalyst rau cov tshuaj tiv thaiv. Nyob rau hauv lub hauv paus-catalyzed cov tshuaj tiv thaiv, hydroxide ion ntawm lub hauv paus tawm tsam alpha hydrogen ntawm carbonyl compound. Hauv cov kua qaub-catalyzed mechanism, H + ion lossis proton tso tawm los ntawm cov kua qaub tawm tsam cov pa atom ntawm carbonyl pawg.
Aldol Condensation yog dab tsi?
Aldol condensation yog cov tshuaj tiv thaiv cov organic synthesis uas lub cev qhuav dej ntawm cov khoom aldol tshwm sim. Cov khoom kawg yog conjugated enone. Cov tshuaj tiv thaiv no tseem ceeb heev hauv kev qhia txog cov pa roj carbon-carbon rau ib qho molecule.
Yog tias cov reactant yog aldehyde, ces cov khoom nruab nrab yog beta-hydroxyaldehyde, tab sis yog tias cov reactant yog ketone, ces cov khoom nruab nrab yog beta-hydroxyketone. Cov khoom no tom qab lub cev qhuav dej los tsim ib qho α, β-unsaturated carbonyl compound. Cov kauj ruam lub cev qhuav dej no yog kev tshem tawm cov tshuaj tiv thaiv.
Qhov txawv ntawm Aldol Ntxiv thiab Aldol Condensation yog dab tsi?
Aldol cov tshuaj tiv thaiv yog ib hom kev sib txuas cov tshuaj tiv thaiv uas muaj ob kauj ruam: aldol ntxiv thiab aldol condensation. Aldol ntxiv yog cov tshuaj tiv thaiv organic uas koom nrog qhov sib ntxiv ntawm ketone enolate rau aldehyde, thaum aldol condensation yog cov organic synthesis cov tshuaj tiv thaiv uas lub cev qhuav dej ntawm cov khoom aldol tshwm sim. Yog li, qhov sib txawv tseem ceeb ntawm aldol ntxiv thiab aldol condensation yog tias aldol ntxiv yog hais txog qhov sib ntxiv ntawm ketone enolate lossis aldehyde enolate rau carbonyl compound, whereas aldol condensation yog hais txog qhov poob ntawm cov dej molecule los ntawm cov khoom aldol los ua ib qho α, β-unsaturated carbonyl compound.
Cov hauv qab no infographic teev qhov sib txawv ntawm aldol ntxiv thiab aldol condensation hauv daim ntawv tabular rau ib sab ntawm kev sib piv.
Summary – Aldol Ntxiv vs Aldol Condensation
Aldol cov tshuaj tiv thaiv muaj ob kauj ruam ua aldol ntxiv thiab aldol condensation. Qhov sib txawv tseem ceeb ntawm aldol ntxiv thiab aldol condensation yog tias aldol ntxiv yog hais txog qhov sib ntxiv ntawm ketone enolate lossis aldehyde enolate rau carbonyl compound, whereas aldol condensation yog hais txog qhov poob ntawm cov dej molecule los ntawm cov khoom aldol los tsim ib qho α, β-unsaturated carbonyl compound.
