In this paper, we discuss our new synthetic approach towards functionalized benzo[d]thiazolyl (BT) sulfones, based on the reunion of alkyl BT sulfones and various electrophiles (e.g. RâCOâX, ROâCOâX, RSâCOâX, TsâXâ¦). All important aspects of this coupling reaction, including relevant and undesirable side reactions, are evaluated by means of calculations and competitive experiments. The scope and limitations of this method are established.
Julia Olefination as a General Route to Phenyl (α-Fluoro)vinyl Sulfones
作者:Barbara Zajc、Maggie He、Arun Ghosh
DOI:10.1055/s-2008-1072513
日期:——
Mild and efficient synthesis of phenyl (α-fluoro)vinylsulfones via condensation of aldehydes and a ketone with a novel benzothiazolyl based bis-sulfone reagent is reported and this proceeds with moderate to good Z-stereoselectivity.
据报道,通过醛和酮与新型苯并噻唑基双砜试剂的缩合反应温和有效地合成苯基(α-氟)乙烯基砜,并且具有中等至良好的 Z 立体选择性。