534-17-8 Cesium Carbonate(Granules)

Flash point	169.8℃
Boiling point
Density	4.072(lit.)
Storage	Moisture & Air sensitive

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).
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)