Various 2(5H)-furanone and furan derivatives were synthesized from 3-(phenylthio)propenal by a one-pot process via carbonyl addition of a range of organometallic reagents and subsequent sulfide-directed α-lithiatin followed by electrophilic trapping. This methodology was successfuly applied to the syntheses of quercus lactone and 2, 5-diarylfuran natural products.
PUMMERER REARRANGEMENT PROMOTED BY POLYPHOSPHORIC ACID TRIMETHYLSILYL ESTER (PPSE)
作者:Masa-aki Kakimoto、Yoshio Imai
DOI:10.1246/cl.1984.1831
日期:1984.10.5
It was found that PPSE catalyzed Pummerer rearrangement of various types of sulfoxides. When α-(phenylsulfinyl)acetophenone was used as sulfoxide, unusual product, phenyl phenylthioglyoxylate was isolated. The reaction seems to proceed via phosphorylation of oxygen of sulfoxides.
Preparation and palladium-catalysed cross-coupling reactions of 3- and 4-tributylstannylfuran-2(5H)-ones
作者:Gregory J. Hollingworth、Gemma Perkins、Joseph Sweeney
DOI:10.1039/p19960001913
日期:——
Stannylfuranones 1 and 2 were prepared by ipso radical desulfurative stannylation of phenylsulfanylfuranones 3 and 16. Compounds 1 and 2 underwent Stille coupling reactions with aryl iodides to give 3- and 4-arylfuran-2(5H)-ones.
Asymmetric Direct Vinylogous Aldol Reaction of Furanone Derivatives Catalyzed by an Axially Chiral Guanidine Base
作者:Hitoshi Ube、Naoki Shimada、Masahiro Terada
DOI:10.1002/anie.200906647
日期:2010.3.1
Ace of Base: The first highly enantioselective directvinylogousaldolreaction of dihalogenated or α‐thio‐substituted furanones with aldehydes utilizes an axially chiral guanidine base catalyst. The method provides facile access to enantioenriched γ‐substituted butenolides.