New tetrahedral boron heterobicycles: Cyclocondensation of phenylboronic acid with β-keto butanoic acid N-acyl hydrazones
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DOI: 10.1016/j.tetlet.2016.12.060
Abstract: Abstract A series of 4-phenyl-2-aryl-8-methyl-6-oxo-7-phenylhydrazo-2H,4H,6H,7H,8H[1,3,4,2]-oxadiazaborolo[2,3-b][1,3,2]oxazaborines were prepared in high yields via the reaction of phenylboronic acid with various N-acylhydrazones of 3-keto-2-(2′-phenylhydrazono) butanoic acid in the presence of 4 A molecular sieves. These derivatives represent a novel… read more here.
Keywords: boron; tetrahedral boron; butanoic acid; phenylboronic acid ... See more keywords