Olefin Cross-Metathesis on Proteins: Investigation of Allylic Chalcogen Effects and Guiding Principles in Metathesis Partner Selection
作者:Yuya A. Lin、Justin M. Chalker、Benjamin G. Davis
DOI:10.1021/ja104994d
日期:2010.12.1
generally enhance the rate of alkene metathesis reactions. Allyl selenides were found to be exceptionally reactiveolefinmetathesissubstrates, enabling a broad range of protein modifications not previously possible. The principles considered in this report are important not only for expanding the repertoire of bioconjugation but also for the application of olefinmetathesis in general synthetic endeavors
Claisen Rearrangement of Carbohydrate-Derived Precursors Towards Highly Functionalized Cyclooctenones withL-xylo,D-arabino andL-lyxo Configuration and Their Diastereoselective Transformations
Alternative approaches towards glycosylated eight-membered ring compounds employing Claisen rearrangement of mono and disaccharide allyl vinyl ether precursors
作者:Stefan Jürs、Joachim Thiem
DOI:10.1016/j.tetasy.2005.02.027
日期:2005.5
Highly functionalized eight-membered rings having a glycosidic residue were synthesized in two different ways involving either glycosylation of a sugar-derived cyclooctenone with high stereocontrol as well as a Claisen rearrangement of a disaccharide derivative.