Stereoselective Synthesis of (<i>Z</i>)- and (<i>E</i>)-Allyl Aryl Sulfides and Selenides from<i>Baylis</i><i>Hillman</i>Acetates under Neutral Conditions Using<i>β</i>-Cyclodextrin in Water
The first example of the stereoselective synthesis of (Z)‐ and (E)‐allylarylsulfides and selenides from BaylisHillman acetates under neutral conditions in H2O by supramolecular catalysis involving β‐cyclodextrin is reported. β‐Cyclodextrin can be recovered and reused. The reaction is very efficient in providing allylarylsulfides and selenides in good‐to‐excellent yields with clean reaction profiles
Stereoselective Cross-Coupling of Baylis–Hillman Acetates with Diphenyl Disulfides and Diselenides Using Palladium Acetate
作者:P. Surendra Reddy、M. Amarnath Reddy、B. Sreedhar、M. V. Basaveswara Rao
DOI:10.1080/00397910903219468
日期:2010.6.25
An efficient method is described for the stereoselective synthesis of diorganyl chalcogenides from a variety of Baylis-Hillman acetates and diaryl chalcogens using palladium catalyst. This reaction is a convenient new method to produce unsymmetrical sulfides and selenides in good yields.