149694-49-5Relevant articles and documents
Efficient synthesis of furan-2-ylacetates, 7-(alkoxycarbonyl)benzofurans, and 7-(alkoxycarbonyl)-2,3-dihydrobenzofurans based on cyclization reactions of free and masked dianions: A "cyclization/dehydrogenation" strategy
Bellur, Esen,Langer, Peter
, p. 10013 - 10029 (2005)
A variety of furan-2-ylacetates have been prepared by dehydrogenation of monocyclic 2-alkylidene-tetrahydrofurans, which are readily available by cyclizations of open-chained 1,3-dicarbonyl dianions with 1-bromo-2- chloroethane. 5′H-[2,3′]Bifuranyl-2′-one
Efficient synthesis of functionalized furans and benzofurans based on a '[3+2] cyclization/oxidation' strategy
Bellur, Esen,Freifeld, Ilia,Langer, Peter
, p. 2185 - 2187 (2005)
Functionalized furans and benzofurans were prepared by DDQ oxidation of 2-alkylidenetetrahydrofurans, which are readily available by one-pot cyclizations of 1,3-dicarbonyl dianions or 1,3-bis-silyl enol ethers.
Regioselective synthesis of functionalized furans by cyclization of 1,3-bis-silyl enol ethers with 1-chloro-2,2-dimethoxyethane
Bellur, Esen,Goerls, Helmar,Langer, Peter
, p. 2074 - 2090 (2007/10/03)
Cyclization of 1,3-bis-silyl enol ethers with 1-chloro-2,2-dimethoxyethane allowed an efficient, regio- and diastereo-selective synthesis of a variety of 2-alkylidene-4-methoxy-tetrahydrofurans. The TFA-mediated elimination of methanol resulted in the formation of functionalized furans. Simi larly, 2,3,3a,4,5,6-hexahydro-2,3-benzofurans were prepared and transformed into 4,5,6,7-tetrahydro-2,3-benzofurans by treatment with TFA Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2005.