Synthesis of [1]benzopyrano[4,3-b]pyrrol-4(1H)-ones from 4-chlorocoumarin

DOI: 10.1055/s-1994-25459

Source and publish data:

Synthesis p. 279 - 281 (1994)

Update date:2022-07-29

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Authors:

Alberola

Alvaro Alvaro

Andres Andres

Calvo Calvo

Gonzalez

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Article abstract of DOI:10.1055/s-1994-25459

4-N-(Acylmethyl)aminocoumarins or their ketal derivatives were prepared from 4-chlorocoumarin and α-amino ketones (chlorohydrates or ketal derivatives) in ethanol/triethylamine media. Their subsequent treatment in acidic or basic media readily led to [1]

Full text of DOI:10.1055/s-1994-25459

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