Cesium carbonate 534-17-8 ixabiso lokuvelisa

Inkcazelo emfutshane:

I-Cesium carbonate 534-17-8


  • Igama lemveliso :Cesium carbonate
  • I-CAS:534-17-8
  • MF:CCs2O3
  • MW:325.82
  • EINECS:208-591-9
  • Umlinganiswa:umenzi
  • Umqulu:1 kg/ibhegi okanye 25 kg/igubu
  • Iinkcukacha zeMveliso

    Iithegi zeMveliso

    Inkcazo

    Igama leMveliso: Cesium carbonate

    CAS: 534-17-8

    MF: CCs2O3

    MW: 325.82

    I-EINECS: 208-591-9

    Ubuninzi: 4.072

    Ifom: Umgubo / iiGranules

    Umbala: Mhlophe

    Ubunzima obuthile: 4.072

    Uvakalelo: Hygroscopic

    Merck: 14,2010

    BRN: 4546405

    Inkcazo

    Igama lemveliso

    Cesium carbonate

    Imbonakalo

    Umgubo omhlophe wekristale

    Ubunyulu

    99.9%

    Indawo yokunyibilika

    610°C

    Indawo yokubilisa

    333.6ºC ku-760 mmHg

    Indawo yokuflasha

    169.8ºC

    Ukunyibilika kwamanzi

    261 g/100 mL (20 ºC)

    Isicelo

    1. Iimpawu ezininzi ze-cesium carbonate kwi-organic synthesis zivela kwi-soft Lewis acidity ye-cesium ion, eyenza i-soluble kwi-solvents ye-organic efana notywala, i-DMF kunye ne-ether.

    2. I-solubility enhle kwi-solvents ye-organic yenza i-cesium carbonate njengesiseko esisebenzayo se-inorganic ukuba sithathe inxaxheba kwi-chemical reactions catalyzed by palladium reagents ezifana ne-Heck, i-Suzuki kunye ne-Sonogashira reactions. Ngokomzekelo, i-Suzuki cross-coupling reaction inokufikelela kwi-86% ngenkxaso ye-cesium carbonate, ngelixa isivuno sempendulo efanayo kunye nokuthatha inxaxheba kwe-sodium carbonate okanye i-triethylamine kuphela i-29% kunye ne-50%. Ngokufanayo, kwi-Heck reaction ye-methacrylate kunye ne-chlorobenzene, i-cesium carbonate ineenzuzo ezicacileyo ngaphezu kwezinye iziseko ze-inorganic, ezifana ne-potassium carbonate, i-acetate ye-sodium, i-triethylamine, kunye ne-potassium phosphate.

    3. I-Cesium carbonate nayo inesicelo esibaluleke kakhulu ekufezekiseni i-O-alkylation reaction of phenol compounds.

    4. Iimvavanyo ziqikelela ukuba i-phenol O-alkylation reaction in non-aqueous solvents eyenziwa yi-cesium carbonate inokuthi ibe ne-phenoloxy anions, ngoko ke i-alkylation reaction inokuthi yenzeke kwi-high-activity second halogens ezixhomekeke ekuphenduleni ukuphelisa. .

    5. I-Cesium carbonate nayo inokusetyenziswa okubalulekileyo kwi-synthesis yeemveliso zendalo. Ngokomzekelo, kwi-synthesis ye-Lipogrammistin-A i-compound kwisinyathelo esiphambili sokuphendula kwindandatho yokuvala, ukusetyenziswa kwe-cesium carbonate njengesiseko se-inorganic kunokufumana iimveliso ezivaliweyo kunye nezivuno eziphezulu.

    6. Ukongezelela, ngenxa ye-solubility enhle ye-cesium carbonate kwi-solvents ye-organic, nayo inokusetyenziswa okubalulekileyo kwi-solid-supported organic reactions. Ngokomzekelo, ukusabela kwamacandelo amathathu e-aniline kunye ne-halide eqinile-exhaswayo ifakwe kwi-carbon dioxide atmosphere ukuze idibanise i-carboxylate okanye i-carbamate compounds kunye nesivuno esiphezulu.

    7. Ngaphantsi kwemitha ye-microwave, i-cesium carbonate isenokusetyenziswa njengesiseko ukuqaphela ukusabela kwe-esterification ye-benzoic acid kunye neehalogens ezixhaswa ngokuqinileyo.

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    immimiselo yokuhlawula

    Ugcino

    ubushushu obuphantsi, indawo yokugcina umoya kunye neyomileyo

    Uzinzo

    ezinzile. Izinto ezingahambelaniyo: ii-oxidants ezinamandla, ii-asidi ezinamandla.


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