Pyran Derivatives, 96. - Benzopyranopyrrole and -pyridine Derivatives
Five- or six-membered ring lactams 1 condense with 2-hydroxybenzoates 2 to yield 2-acyl-4-butane- and -5-pentanelactams 3 which can be converted into the saturated benzopyranopyrrolones and -pyridinones 14 and 23, respectively.The intermediates
Eiden, Fritz,Baumann, Egmont,Lotter, Hermann
p. 165 - 180
(2007/10/02)
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