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• 试剂商城
• 直接询价

分类

• {SNA} Acids & Bases, Bases, Cesium Salts, Chemical Synthesis, Inorganic Bases, Materials Science, Metal and Ceramic Science, Salts, Synthetic Reagents
• {SNA} Acids & Bases, Bases, Cesium Salts, Chemical Synthesis, Essential Chemicals,

产品应用

• 促进有效的醇O型-烷基化形成烷基碳酸盐。

相关文献及参考

• Can be used to prepare Cs salts of N-protected amino acids or peptides, which can then be cleanly esterified by treatment with an alkyl halide in DMF: Helv. Chim. Acta, 56, 1476 (1973); J. Org. Chem., 42, 1286 (1977). Carboxylic acids can be esterified in high yield with an alkyl halide and Cs2CO3 at ambient temperature in DMF: Synth. Commun., 30, 2687 (2000). Benzoic acids can be esterified by refluxing with an alcohol in acetonitrile: Org. Prep. Proced. Int., 28, 480 (1996).
• Merck:14,2010
• For cleavage of 2-oxazolidinones to give amino alcohols, see: Tetrahedron Lett., 28, 4185 (1987).
• For a review of the 'cesium ion effect' and macrocyclization, see: Org. Prep. Proced. Int., 24, 285 (1992).
• For a brief feature on uses of the reagent in synthesis, see: Synlett, 2447 (2004).
• Superior base for Horner-Wadsworth-Emmons olefination reaction of phosphonates: Chem. Lett., 335 (1989); Bull. Soc. Chim. Belg., 100, 267 (1991).
• The di-Cs salts of catechol and resorcinol are superior to other alkali metal salts in the reaction with dibromoethers in DMF to give crown ethers: J. Chem. Soc., Chem. Commun., 285 (1979). Also used in the facile synthesis of alkyl phenyl ethers from phenols and alkyl halides in acetonitrile: Synth. Commun., 25, 1367 (1995), and catalytically in the O-methylation of phenols by heating in excess dimethyl carbonate: Synlett, 1063 (1998); K2CO3 was found to be less effective. Indoles undergo N-alkylation in DMPU: Synlett, 2394 (2004).
• For use in formation of macrocyclic sulfides from dithiols and dibromoalkanes, see: J. Org. Chem., 46, 4481 (1981); Org. Synth. Coll., 8, 592 (1993). Salts of other metals are ineffective.
• For a brief feature on uses of the reagent in synthesis, se

安全信息

GHS Symbol

TYPE OF TEST            : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE       : Oral
SPECIES OBSERVED        : Rodent - rat
DOSE/DURATION           : 2333 mg/kg
TOXIC EFFECTS :
   Details of toxic effects not reported other than lethal dose value
REFERENCE :
   VAMNAQ Vestnik Akademii Meditsinskikh Nauk SSSR.  Journal of the Academy of
   Medical Sciences of the USSR.  (V/O Mezhdunarodnaya Kniga, 113095 Moscow,
   USSR)  V.1-    1946-  Volume(issue)/page/year: (8),10,1978

TYPE OF TEST            : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE       : Oral
SPECIES OBSERVED        : Rodent - mouse
DOSE/DURATION           : 2170 mg/kg
TOXIC EFFECTS :
   Details of toxic effects not reported other than lethal dose value
REFERENCE :
   VAMNAQ Vestnik Akademii Meditsinskikh Nauk SSSR.  Journal of the Academy of
   Medical Sciences of the USSR.  (V/O Mezhdunarodnaya Kniga, 113095 Moscow,
   USSR)  V.1-    1946-  Volume(issue)/page/year: (8),10,1978

TYPE OF TEST            : DNA repair
TEST SYSTEM             : Bacteria - Bacillus subtilis
DOSE/DURATION           : 5 mol/L
REFERENCE :
   MUREAV Mutation Research.  (Elsevier Science Pub. B.V., POB 211, 1000 AE
   Amsterdam, Netherlands) V.1-    1964-  Volume(issue)/page/year: 77,109,1980

其他信息

• 毒性分级:中毒
• 灭火剂:水
• 可燃性危险特性:热分解辛辣刺激烟雾
• MSDS 信息:Cesium carbonate (534-17-8).msds
• Acros Organics:碳酸铯 Cesium carbonate, for analysis, 99.5%(534-17-8)
• 急性毒性:口服-大鼠 LD50: 2333 毫克/公斤; 口服-小鼠 LD50: 2170 毫克/公斤
• 海关编码:28369918
• 储运特性:库房低温通风干燥
• Sigma Aldrich:534-17-8(sigmaaldrich)
• 敏感性:Hygroscopic
• 用途一:用作分析试剂
• MOL 文件:534-17-8.mol
• 类别:有毒物质
• F:3-10
• 图谱信息:碳酸铯(534-17-8)红外图谱(IR1)
• 极易潮解,极易溶于水和醇,能溶于醚,密封干燥保存.红热时熔化,610℃分解
• Cesium carbonate promotes the efficient O-alkylation of alcohols to form mixed alkyl carbonates. It is a catalyst for aerobic oxidation of primary alcohols, 1,4-addition reactions, intramolecular C-N cross coupling reactions and dehydrohalogenative polycondensation reactions.
• 碳酸铯价格(试剂级):更新日期 产品编号 产品名称 包装 价格 2011/08/23 51006161 碳酸铯 5g 45元 2011/08/23 20014121 碳酸铯 1g 9元 2010/06/21 278020100 碳酸铯 Cesium carbonate 10 GR 201元
• Alfa Aesar:碳酸铯,Puratronic|r,99.994%(metalsbasis) Cesium carbonate, Puratronic, 99.994% (metals basis)(534-17-8)
• 用途二:用于制取各种铯盐的原料，特种玻璃、陶瓷工业、电子行业的冷阴极液晶管、石油催化剂行业及医药行业、分析试剂等
• 下游产品:1-苯基-3-三氟甲基-1H-吡唑-4-腈 --> 1-苯基-3-三氟甲基-1H-吡唑-4-酰胺 --> (1-苯基-3-三氟甲基-1H-吡唑-4-基)甲胺 --> 1-苯基-3-三氟甲基-1H-吡唑-4-醛 --> 1-苯基-3-三氟甲基-1H-吡唑-4-胺 --> (1-苯基-3-三氟甲基-1H-吡唑-4-基)甲醇 --> 2-氯喹啉 --> 1-苯基-3-三氟甲基-1H-吡唑-4-羧酸乙酯 --> 1-苯基-3-三氟甲基-1H-吡唑-4-羧酸 --> 1-苯基-3-三氟甲基-1H-吡唑-5-羧酸 --> 1-苯基-3-三氟甲基-4-溴-1H-吡唑 --> 1-(4-吡啶基)哌嗪 --> 1-苯基-3-三氟甲基吡唑 --> 3-吗啉基苯甲醛 --> 4-氯苯氧基乙酰氯 --> 5-苯基噻吩-2-羧酸 --> 5-苯基-2-噻吩甲醛 --> 1-苯基咪唑
• 外观性质:白色结晶粉末,极易潮解,极易溶于水和醇,能溶于醚,密封干燥保存.红热时熔化,610℃分解熔点：610℃
• 存储注意事项:氩气保护