Cyclopropanation–ring expansion of 3-chloroindoles with α-halodiazoacetates: novel synthesis of 4-quinolone-3-carboxylic acid and norfloxacin

Autor: Pal Rongved, Tore Bonge-Hansen, Sara Peeters, Linn Neerbye Berntsen
Rok vydání: 2019
Předmět:
Zdroj: Beilstein Journal of Organic Chemistry, Vol 15, Iss 1, Pp 2156-2160 (2019)
Beilstein Journal of Organic Chemistry
ISSN: 1860-5397
2195-951X
DOI: 10.3762/bjoc.15.212
Popis: We present a short and efficient way of synthesizing two synthetically versatile 4-quinolone-3-carboxylate building blocks by cyclopropanation-ring expansion of 3-chloroindoles with α-halodiazoacetates as the key step. This novel transformation was applied towards the synthesis of the antibiotic drug norfloxacin.
Databáze: OpenAIRE