期刊
SYNTHESIS-STUTTGART
卷 -, 期 -, 页码 -出版社
GEORG THIEME VERLAG KG
DOI: 10.1055/a-2193-5593
关键词
heterocycles; rearrangement; Lewis acids; annulations; catalysis
A new approach for the synthesis of phenanthridin-4-ols and 4-hydroxyphenanthridin-6(5H)-one derivatives was developed. The AlCl3-mediated rearrangement of available 4-phenylbenzo[d]oxazoles and 4-phenyl-1,3-benzoxazol-2(3H)-one yielded the desired products with yields ranging from 43% to 89%. Quantum chemical calculations were utilized to describe the reaction mechanism and predict the thermodynamic parameters.
A new approach was developed for the synthesis of phenanthridin-4-ols and 4-hydroxyphenanthridin-6(5H)-one derivatives in 43-89% yields based on the AlCl3-mediated rearrangement of available 4-phenylbenzo[d]oxazoles and 4-phenyl-1,3-benzoxazol-2(3H)-one. The quantum chemical calculations were used to describe the mechanism and predict the thermodynamic parameters of the reaction under study.
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