Cesium hydrogencarbonate can be used as a base:In the Ni-catalyzed hydroarylation of unactivated alkenes with arylboronic acids to synthesize arylated alkanes；To synthesize 5-phenylthiazolamines by coupling thiourea with phenylacetones, phenylacetophenones, and β-tetralone in the presence of CBrCl3；In the Pd-catalyzed hydroxycarbonylation of aryl halides；In the regioselective alkylation of 2,4-dihydroxybenzyaldehydes and 2,4-dihydroxyacetophenones using alkyl halides to synthesize 4-alkylated products.
It can also be used as a catalyst for the：Etherification of glycerol to oligomers；Acetylation of primary alcohols and phenols to acetates using acetic anhydride.
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