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- Title
Reformatsky Reaction with N-Substituted 6-Bromo-2-oxochromene-3-carboxamides.
- Authors
Shchepin, V. V.; Fotin, D. V.; Fotin, V. V.; Vakhrin, M. I.
- Abstract
Reformatsky reactions of ethyl α-bromopropionate, methyl α-bromobutyrate, and methyl α-bromo-isobutyrate with N-substituted 6-bromo-2-oxochromene-3-carboxamides in the system diethyl ether–benzene– HMPA give N-benzyl-6-bromo-4-(1-alkoxycarbonylalkyl)-2-oxochroman-3-carboxamides, while in the system diethyl ether–benzene–HMPA–THF, 3-R1-1-R2-1-R3-9-bromo-2,3,4,4a,5,10b-hexahydro-1H-chromeno[3,4-c]-pyridine-2,4,5-triones are obtained.
- Subjects
ORGANOBROMINE compounds; CHEMICAL reactions; AMIDES; HETEROCYCLIC compounds; PYRIDINE; SUBSTITUTION reactions
- Publication
Russian Journal of Organic Chemistry, 2004, Vol 40, Issue 6, p892
- ISSN
1070-4280
- Publication type
Article
- DOI
10.1023/B:RUJO.0000044556.65215.ea