Cesium carbonate 534-17-8 qiimaha wax soo saarka

Sharaxaad Gaaban:

Cesium carbonate 534-17-8


  • Magaca alaabta:Cesium carbonate
  • CAS:534-17-8
  • MF:CCs2O3
  • MW:325.82
  • EINECS:208-591-9
  • Jilaa:soo saaraha
  • Xidhmada:1 kg / bac ama 25 kg / durbaan
  • Faahfaahinta Alaabta

    Tags Product

    Sharaxaada

    Magaca Alaabta: Cesium carbonate

    CAS: 534-17-8

    MF: CCs2O3

    MW: 325.82

    EINECS: 208-591-9

    Cufnaanta: 4.072

    Foomka: Budada/Granules

    Midabka: Caddaan

    Cuf-jiid gaar ah: 4.072

    Xasaasi ah: Hygroscopic

    Marka: 14,2010

    BRN: 4546405

    Tilmaamid

    Magaca Alaabta

    Cesium carbonate

    Muuqashada

    Budada crystalline cad

    daahirnimo

    99.9%

    barta dhalaalaysa

    610°C

    Barta karkarinta

    333.6ºC at 760 mmHg

    Barta toosan

    169.8ºC

    Biyuhu milma

    261 g/100 ml (20ºC)

    Codsiga

    1. Sifooyin badan oo ah karbohaydraytyada cesium carbonate ee isku-dhafka dabiiciga ah waxay ka yimaadaan jilicsanaanta Lewis acidity ee cesium ion, taas oo ka dhigaysa inay ku milmaan dareerayaasha organic sida khamriga, DMF iyo ether.

    2. milanka wanaagsan ee dareerayaasha organic waxay awood u siinaysaa cesium carbonate sida saldhig aan noolayn oo wax ku ool ah si ay uga qayb qaataan falcelinta kiimikaad ee ay kiciyaan reagents palladium sida falcelinta Heck, Suzuki iyo Sonogashira. Tusaale ahaan, falcelinta isku-xidhka Suzuki waxay gaari kartaa wax-soo-saarka 86% iyadoo la kaashanayo cesium carbonate, halka wax-soo-saarka fal-celinta isku midka ah ee ka-qaybgalka sodium carbonate ama triethylamine ay tahay 29% oo keliya iyo 50%. Sidoo kale, falcelinta Heck ee methacrylate iyo chlorobenzene, cesium carbonate waxay leedahay faa'iidooyin muuqda marka loo eego saldhigyada kale ee aan dabiiciga ahayn, sida potassium carbonate, sodium acetate, triethylamine, iyo potassium phosphate.

    3. Cesium carbonate sidoo kale waxay leedahay codsi aad muhiim u ah xaqiijinta falcelinta O-alkylation ee xeryahooda phenol.

    4. Tijaabooyinku waxay qiyaasaan in falcelinta phenol O-alkylation ee dareeraha aan biyaha lahayn ee ay keento cesium carbonate ay u badan tahay inay la kulmeen anions phenoloxy, markaa falcelinta alkylation waxay sidoo kale ku dhici kartaa halogens sare oo firfircoon oo u nugul falcelinta baabi'inta. .

    5. Cesium carbonate sidoo kale waxay leedahay adeegsiyo muhiim ah oo ku saabsan isku dhafka alaabta dabiiciga ah. Tusaale ahaan, isku-dhafka Lipogrammistin-A ee tallaabada muhiimka ah ee falcelinta xidhitaanka giraanta, isticmaalka cesium carbonate sida saldhig aan dabiici ahayn waxay heli kartaa alaabooyin xiran oo giraan ah oo leh waxsoosaar sare.

    6. Intaa waxaa dheer, sababtoo ah milanka wanaagsan ee cesium carbonate ee dareeraha organic, waxay sidoo kale leedahay isticmaalka muhiimka ah ee falcelinta dabiiciga ah ee adag ee taageeraya. Tusaale ahaan, falcelinta saddexda qaybood ee aniline iyo halide-taageer adag ayaa lagu soo rogay jawiga carbon dioxide si ay u abuuraan xeryahooda karboxylate ama karbamate leh dhalooyin sare.

    7. Shucaaca microwave-ka hoostiisa, cesium carbonate sidoo kale waxaa loo isticmaali karaa saldhig si loo xaqiijiyo falcelinta esterification ee benzoic acid iyo halogens-taageer adag.

    Lacag bixinta

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    shuruudaha lacag-bixinta

    Kaydinta

    heerkulka hooseeya, bakhaar hawo leh iyo qalalan

    Xasilooni

    deggan. Walxaha aan ku habboonayn: oksaydhiyeyaasha xooggan, acids xooggan.


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