Biocatalytic access to nonracemic γ-oxo esters via stereoselective reduction using ene-reductases
作者:Nikolaus G. Turrini、Răzvan C. Cioc、Daan J. H. van der Niet、Eelco Ruijter、Romano V. A. Orru、Mélanie Hall、Kurt Faber
DOI:10.1039/c6gc02493a
日期:——
The asymmetric bioreduction of [small alpha],[small beta]-unsaturated [gamma]-keto esters usingene-reductasesfrom the OldYellowEnzymefamily proceeds with excellent stereoselectivity and high conversion levels, covering a broad range of acyclic and...
Facile Synthesis of Functional Tricyclic Fused Furans by Intramolecular Wittig Reactions
作者:Yi-Ling Tsai、Utpal Das、Siang-en Syu、Chia-Jui Lee、Wenwei Lin
DOI:10.1002/ejoc.201300426
日期:2013.7
the preparation of tricyclic fused furans in one step starting from acid chlorides and Michael acceptors is described. The reaction conditions are mild, operationally simple, and have a broad substrate scope. The reaction is believed to proceed by an intramolecular Wittigreaction with a phosphorus ylide as the key intermediate.