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 Å molecular sieves. These derivatives represent a novel class of zwitterionic, tetrahedral boron heterocycles. Single crystal X-ray analysis of a representative boron containing product is reported.
一系列的4-苯基-2-芳基-8-甲基-6-氧代-7-苯基
肼-2 H,4 H,6 H,7 H,8 H [1,3,4,2]-恶二氮杂
硼[2,3,4,2]通过在4Å存在下使苯基
硼酸与3-酮-2-(2'-苯基
肼基)
丁酸的各种N-酰基hydr反应,高产率地制备,3- b ] [1,3,2]
恶唑嘌呤分子筛。这些衍
生物代表一类新型的两性离子四面体
硼杂环。报告了代表性的含
硼产物的单晶X射线分析。