The hitherto unknown lactone 5H-pyrrolo[1,2-a][3,1]benzoxazin-5-one and six of its substituted derivatives have been prepared by active manganese dioxide promoted oxidative cyclization of the corresponding ortho-(1H-pyrrol-1-yl)benzoic acids, under mild conditions, in moderate yields.
Fedora, G., Brizzi, A., Garofalo, A., Francesca, A. (2013). Active manganese dioxide promoted cyclization of ortho-(1H-pyrrol-1-yl)aryl and heteroaryl carboxylic acids to 5H-pyrrolo[1,2-a][3,1]benzoxazin-5-one derivatives. TETRAHEDRON, 69, 9951-9956 [10.1016/j.tet.2013.09.072].
Active manganese dioxide promoted cyclization of ortho-(1H-pyrrol-1-yl)aryl and heteroaryl carboxylic acids to 5H-pyrrolo[1,2-a][3,1]benzoxazin-5-one derivatives
BRIZZI, ANTONELLA;GAROFALO, ANTONIO;
2013-01-01
Abstract
The hitherto unknown lactone 5H-pyrrolo[1,2-a][3,1]benzoxazin-5-one and six of its substituted derivatives have been prepared by active manganese dioxide promoted oxidative cyclization of the corresponding ortho-(1H-pyrrol-1-yl)benzoic acids, under mild conditions, in moderate yields.
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https://hdl.handle.net/11365/45091
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