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Synthesis 1992; 1992(3): 265-266
DOI: 10.1055/s-1992-26084
short paper
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Synthesis of 3-Alkyl-3-bromo-1-ethoxycarbonyl-1,3-dihydro-2H-indol-2-ones

Egle M. Beccalli* , Alessandro Marchesini
  • *Dipartimento di Chimica Organica e Industriale, Universita' degli Studi di Milano, via Golgi 19, I-20133 Milano, Italy
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Publication Date:
17 September 2002 (online)

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3-Alkyl-1,3-dihydro-2H-indol-2-ones 1 are converted to the coresponding 2-ethoxycarbonyloxy derivatives 2 by reaction with ethyl chloroformate in the presence of triethylamine. Bromination of 2 affords the title compounds in 73-93% yield.