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An efficient potassium cyanide-promoted synthesis of 2-arylbenzoxazoles from [4.3.0]boron heterobicycles |
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| Authors: | Heraclio López-Ruiz Horacio Briseño-Ortega Rosa Santillán |
| Institution: | a Centro de Investigaciones Químicas, Universidad Autónoma del Estado de Hidalgo, Carretera Pachuca-Tulancingo Km 4.5, Ciudad Universitaria, 42184 Mineral de la Reforma, Mexico b Departamento de Química, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional Apto. Postal 14-740, 07000 México D.F., Mexico c Departamento de Química Orgánica, Facultad de Química, Universidad Nacional Autónoma de México, Circuito Escolar, Ciudad Universitaria, 04510, México D.F., Mexico |
| Abstract: | The 2-arylbenzoxazoles 3a-f were produced in moderate to excellent yields merely by stirring a potassium cyanide (3 equiv)-containing methanol solution of the borobicyclic compounds 1a-f at room temperature. These compounds were fully characterized spectroscopically IR, 1H, and 13C NMR and X-ray analysis (3a)] and by elemental analysis. |
| Keywords: | Schiff bases Boronates Potassium cyanide 2-Arylbenzoxazoles NMR |
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