Cesium carbonate 534-17-8 chaw tsim tshuaj paus nqi

Cesium carbonate 534-17-8 chaw tsim tshuaj paus nqi

Muaj cov khoom lag luam txaus, siab zoo thiab xa khoom sai.Ntau qhov ntau nrog luv nqi ntxiv.
Txhua yam kev xav tau, txais tos hu rau peb txhua lub sijhawm.

Kev piav qhia

Khoom npe: Cesium carbonate

CAS: 534-17-8 Nr

MF: CCs2O3

PEB: 325.82 MW

PIB: 208-591-9

Qhov ceev: 4.072

Daim ntawv: hmoov / Granules

Xim: Dawb

Specification Gravity: 4.072

Sensitive: Hygroscopic

Hnub tim: 14, 2010

PIB: 4546405

Daim ntawv thov

1. Ntau yam khoom ntawmcesium carbonateNyob rau hauv cov organic synthesis los ntawm mos Lewis acidity ntawm cesium ion, uas ua rau nws soluble nyob rau hauv organic solvents xws li cawv, DMF thiab ether.

2. Qhov zoo solubility nyob rau hauv cov kuab tshuaj organic enables cesium carbonate raws li ib tug zoo inorganic puag los koom nyob rau hauv cov tshuaj tiv thaiv catalyzed los ntawm palladium reagents xws li Heck, Suzuki thiab Sonogashira cov tshuaj tiv thaiv.Piv txwv li, Suzuki cross-coupling cov tshuaj tiv thaiv tuaj yeem ua tiav cov txiaj ntsig ntawm 86% nrog kev txhawb nqa ntawm cesium carbonate, thaum cov txiaj ntsig ntawm tib cov tshuaj tiv thaiv nrog kev koom tes ntawm sodium carbonate lossis triethylamine tsuas yog 29% thiab 50%.Ib yam li ntawd, hauv Heck cov tshuaj tiv thaiv ntawm methacrylate thiab chlorobenzene, cesium carbonate muaj qhov zoo tshaj plaws ntawm lwm cov hauv paus inorganic, xws li potassium carbonate, sodium acetate, triethylamine, thiab potassium phosphate.

3. Cesium carbonateKuj tseem muaj daim ntawv thov tseem ceeb hauv kev paub txog O-alkylation cov tshuaj tiv thaiv ntawm phenol tebchaw.

4. Cov kev sim xav tias phenol O-alkylation cov tshuaj tiv thaiv nyob rau hauv cov kuab tshuaj uas tsis yog aqueous tshwm sim los ntawm cesium carbonate yuav muaj kev paub txog phenoloxy anions, yog li cov tshuaj tiv thaiv alkylation kuj tuaj yeem tshwm sim rau kev ua haujlwm siab theem nrab halogens uas muaj feem cuam tshuam rau kev tshem tawm cov tshuaj tiv thaiv..

5. Cesium carbonatekuj tseem muaj kev siv tseem ceeb hauv kev tsim cov khoom ntuj tsim.Piv txwv li, nyob rau hauv cov synthesis ntawm Lipogrammistin-A compound nyob rau hauv lub kauj ruam tseem ceeb ntawm lub nplhaib-kaw cov tshuaj tiv thaiv, kev siv cov cesium carbonate raws li ib tug inorganic puag yuav tau kaw-ntiv nplhaib cov khoom nrog high yields.

6. Tsis tas li ntawd, vim yog qhov zoo solubility ntawm cesium carbonate hauv cov kuab tshuaj organic, nws kuj tseem muaj kev siv tseem ceeb hauv cov khoom siv txhawb nqa organic.Piv txwv li, peb cov tshuaj tiv thaiv ntawm aniline thiab cov khoom txhawb nqa halide yog induced nyob rau hauv cov pa roj carbon dioxide los ua ke cov carboxylate los yog carbamate tebchaw nrog siab yield.

7. Nyob rau hauv microwave hluav taws xob, cesium carbonate kuj tseem siv tau los ua lub hauv paus kom paub txog cov tshuaj tiv thaiv esterification ntawm benzoic acid thiab cov khoom txhawb nqa halogens.

Cia

low-temperature, ventilated thiab qhuav warehouse

Kev piav qhiaKhoom npe: Cesium carbonate
CAS: 534-17-8 Nr
MF: CCs2O3
PEB: 325.82 MW
PIB: 208-591-9
Qhov ceev: 4.072
Daim ntawv: hmoov / Granules
Xim: Dawb
Specification Gravity: 4.072
Sensitive: Hygroscopic
Hnub tim: 14, 2010
PIB: 4546405