Qhov sib txawv tseem ceeb ntawm Heck Stile thiab Suzuki cov tshuaj tiv thaiv yog tias Heck cov tshuaj tiv thaiv cuam tshuam nrog kev sib txuas ntawm qhov tsis muaj halide nrog alkene whereas, Stile cov tshuaj tiv thaiv cuam tshuam nrog kev sib txuas ntawm organotin compound nrog halide compound. Lub caij no, Suzuki cov tshuaj tiv thaiv cuam tshuam nrog kev sib txuas ntawm boronic acid nrog cov organohalide compound.
Heck cov tshuaj tiv thaiv, cov tshuaj tiv thaiv Stile thiab Suzuki cov tshuaj tiv thaiv yog peb hom tshuaj tiv thaiv kab mob uas tau categorized li coupling tshua.
Heck Reaction yog dab tsi?
Heck cov tshuaj tiv thaiv yog ib hom kev sib txuas ntawm cov organic sib txuas uas cuam tshuam nrog kev sib txuas ntawm cov halide unsaturated nrog alkene. Cov tshuaj tiv thaiv no tau muaj npe tom qab Richard F. Heck. Nws kuj tau txais qhov khoom plig Nobel xyoo 2010 nrog rau ob tus kws tshawb fawb txog kev txhim kho no. Nws tshwm sim nyob rau hauv lub xub ntiag ntawm lub hauv paus thiab ib tug palladium catalyst. Cov tshuaj tiv thaiv no tsim ib qho kev hloov pauv alkene ua cov khoom kawg. Yog li ntawd, peb tuaj yeem txiav txim siab tias nws yog ib txoj hauv kev los hloov ob lub ntsiab lus alkene.
Daim duab 01: Heck Reaction
Cov tshuaj tiv thaiv Heck tuaj yeem ua rau siv palladium ntsev thiab cov complexes. Qee qhov piv txwv rau cov catalysts muaj xws li tetrakis (triphenylphosphine) palladium (0), palladium chloride, thiab palladium (II) acetate.
Thaum xav txog cov tshuaj tiv thaiv ntawm cov tshuaj tiv thaiv Heck, nws suav nrog organopalladium intermediates. Cov kauj ruam tseem ceeb ntawm Heck cov tshuaj tiv thaiv muaj xws li oxidative ntxiv, tso cov alkene rau hauv palladium-carbon daim ntawv cog lus nyob rau hauv ib qho kev sib ntxiv, beta hydride tshem tawm cov tshuaj tiv thaiv thiab rov tsim cov catalyst.
Stile Reaction yog dab tsi?
Stile cov tshuaj tiv thaiv yog ib hom tshuaj tiv thaiv kab mob sib txuas uas cuam tshuam nrog kev sib txuas ntawm organotin compound nrog halide compound. Cov tshuaj tiv thaiv no suav nrog cov organic electrophiles uas muab lwm tus khub sib txuas.
Daim duab 02: Mechanism of Stile Reaction
Thaum xav txog cov txheej txheem ntawm Stile cov tshuaj tiv thaiv, muaj lub voj voog catalytic uas suav nrog oxidative ntxiv ntawm halide mus rau palladium catalyst, ua raws li kev tshem tawm txo qis, ua rau cov khoom sib txuas thiab thaum kawg regenerating catalyst.
Ntxiv mus, muaj ntau daim ntawv thov ntawm Stile cov tshuaj tiv thaiv, suav nrog kev sib xyaw ntawm ntau hom polymers. Nws kuj yog siv rau hauv cov organic syntheses, tshwj xeeb tshaj yog nyob rau hauv synthesis ntawm natural khoom.
Suzuki Reaction yog dab tsi?
Suzuki cov tshuaj tiv thaiv yog ib hom tshuaj tiv thaiv organic uas sib txuas ntawm boronic acid nrog ib qho organohalide compound tshwm sim. Lub catalyst rau qhov sib txuas cov tshuaj tiv thaiv yog palladium (0) complex. Cov tshuaj tiv thaiv no tau muaj npe tom qab Akira Suzuki hauv xyoo 1979. Cov tshuaj tiv thaiv no kuj muaj npe hu ua Suzuki coupling. Cov tshuaj tiv thaiv muaj ntau yam kev siv, suav nrog cov synthesis ntawm polyolefins, styrenes, thiab hloov biphenyls.
Daim duab 03: Mechanism ntawm Suzuki Reaction
Cov tshuaj tiv thaiv ntawm Suzuki cov tshuaj tiv thaiv suav nrog ob peb kauj ruam, suav nrog oxidative ntxiv ntawm palladium rau halide tsim cov organopalladium hom, ua raws li kev tsim ntawm ib qho nruab nrab ntawm transmetalation nrog rau cov boronate complex; Thaum kawg, txo qis kev tshem tawm tshwm sim, tsim cov khoom xav tau thiab rov ua dua qub palladium catalyst. Cov kauj ruam kawg no ua kom tiav lub voj voog catalytic. Daim ntawv thov ntawm Suzuki cov tshuaj tiv thaiv suav nrog kev sib xyaw ntawm cov tshuaj nruab nrab rau cov tshuaj lossis tshuaj zoo.
Qhov txawv ntawm Heck Stile thiab Suzuki Reaction yog dab tsi?
Heck, Stile thiab Suzuki cov tshuaj tiv thaiv yog peb hom kev sib txuas ntawm cov organic sib txuas. Qhov sib txawv tseem ceeb ntawm Heck Stile thiab Suzuki cov tshuaj tiv thaiv yog tias Heck cov tshuaj tiv thaiv cuam tshuam nrog kev sib txuas ntawm cov halide unsaturated nrog alkene, thiab cov tshuaj tiv thaiv Stile cuam tshuam nrog kev sib txuas ntawm organotin compound nrog halide compound, whereas Suzuki cov tshuaj tiv thaiv cuam tshuam nrog kev sib txuas ntawm boronic. acid nrog ib qho organohalide compound.
Hauv qab no yog qhov sib txawv ntawm qhov sib txawv ntawm Heck Stile thiab Suzuki cov tshuaj tiv thaiv rau kev sib piv ntawm ib sab.
Summary – Heck Stile vs Suzuki Reaction
Heck cov tshuaj tiv thaiv, cov tshuaj tiv thaiv Stile thiab Suzuki cov tshuaj tiv thaiv yog cov tshuaj lom neeg cov tshuaj lom neeg uas peb tuaj yeem categorize raws li kev sib txuas lus. Qhov sib txawv tseem ceeb ntawm Heck Stile thiab Suzuki cov tshuaj tiv thaiv yog tias Heck cov tshuaj tiv thaiv cuam tshuam nrog kev sib txuas ntawm cov halide unsaturated nrog ib qho alkene thiab cov tshuaj tiv thaiv Stile koom nrog kev sib txuas ntawm ib qho organotin compound nrog halide compound, whereas Suzuki cov tshuaj tiv thaiv cuam tshuam nrog kev sib txuas ntawm boronic acid nrog ib qho kev sib txuas ntawm organotin. Organohalide compound.
