Synthesis of Chromanes and 4H-Chromenes: Exploring the Oxidation of 2H-Chromenes and Dihydro-1-benzoxepines by Hypervalent Iodine(III)
| Contribuinte(s) |
UNIVERSIDADE DE SÃO PAULO |
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| Data(s) |
04/11/2013
04/11/2013
2012
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| Resumo |
The reaction of various oxygen-containing benzo-fused cycloalkenes were studied with the hypervalent iodine reagent hydroxy(tosyloxy) iodo]benzene [PhI(OH)OTs, HTIB]. 2H-Chromene and 4-methyl-2H-chromene resulted in substituted 4H-chromene and cis-3,4-dialkoxy-4-methyl-3,4-dihydro-2H-chromenes, respectively. Ring contraction to chromanes and benzofurans was observed for dihydrobenzoxepines and 2,2-dimethyl-2H-chromenes, respectively. CAPES Capes Fapesp FAPESP CNPq CNPQ |
| Identificador |
SYNTHESIS-STUTTGART, STUTTGART, v. 44, n. 23, supl. 1, Part 6, pp. 3671-3677, DEC, 2012 0039-7881 http://www.producao.usp.br/handle/BDPI/37838 10.1055/s-0032-1317497 |
| Idioma(s) |
eng |
| Publicador |
GEORG THIEME VERLAG KG STUTTGART |
| Relação |
SYNTHESIS-STUTTGART |
| Direitos |
closedAccess Copyright GEORG THIEME VERLAG KG |
| Palavras-Chave | #CHROMENES #CHROMANES #KOSER'S REAGENT #RING CONTRACTION #HYPERVALENT IODINE #RING CONTRACTION #ALPHA-TOSYLOXYLATION #KETONES #<HYDROXY(TOSYLOXY)IODO>BENZENE #1,2-DIHYDRONAPHTHALENES #DISCOVERY #ORGANOIODINE #INHIBITORS #AMINATION #EXPANSION #CHEMISTRY, ORGANIC |
| Tipo |
article original article publishedVersion |
