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.
Synthesis of 3-alkyl-3-bromo-1-ethoxycarbonyl-1,3-dihydro-2H-indol-2-ones / E.M. Beccalli, A. Marchesini. - In: SYNTHESIS. - ISSN 0039-7881. - :3(1992), pp. 265-266.
Synthesis of 3-alkyl-3-bromo-1-ethoxycarbonyl-1,3-dihydro-2H-indol-2-ones
E.M. BeccalliPrimo
;A. MarchesiniUltimo
1992
Abstract
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.
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