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- W2079135044 abstract "Nach Öffnung und Decarboxylierung der α-Ethoxalyl-γ-lactone 1a-d können durch Umsetzung mit Phenylhydrazinen die Hydrazone 4a-l und daraus Indololactone des Typs 5 hergestellt werden. Überträgt man die Reaktionsfolge auf die analogen δ-Lactone 6 und 10, so gelingt die Indolsynthese, nicht jedoch der Lacton-Ringschluß. Lactones, XI: Syntheses of 4.9-Dihydropyrano[3.4-b]-indol-1(3H)-ones from α-Ethoxalyl-γ-lactones Cleavage and decarboxylation of the α-ethoxalyl-γ-lactones 1a-d followed by treatment with phenylhy-drazines yield the hydrazones 4a-l, which can be rearranged to the indololactones 5a-m. Starting from the δ-lactones 6 and 10, the same reactions lead to indoles without lactone ring closure." @default.
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- W2079135044 date "1987-01-01" @default.
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- W2079135044 title "Lactone, 11. Mitt. Synthese von 4.9-Dihydropyrano[3.4-b]indol-1(3H)-onen aus α-Ethoxalyl-γ-lactonen" @default.
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- W2079135044 doi "https://doi.org/10.1002/ardp.19873200105" @default.
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