Labeling and Natural Post-Translational Modification of Peptides and Proteins via Chemoselective Pd-Catalyzed Prenylation of Cysteine
作者:Thomas Schlatzer、Julia Kriegesmann、Hilmar Schröder、Melanie Trobe、Christian Lembacher-Fadum、Simone Santner、Alexander V. Kravchuk、Christian F. W. Becker、Rolf Breinbauer
DOI:10.1021/jacs.9b08279
日期:2019.9.18
The prenylation of peptides and proteins is an important post-translational modification observed in vivo. We report that the Pd-catalyzed Tsuji–Trost allylation with a Pd/BIPHEPHOS catalyst system allows the allylation of Cys-containing peptides and proteins with complete chemoselectivity and high n/i regioselectivity. In contrast to recently established methods, which use non-native connections,
electron-deficient imines with allylic alcohol derivatives in the presence of a catalytic amount of palladium(0) complex and indium(I) iodide was studied. The reversibility of allylation was observed in the reaction of glyoxylic oxime ether having camphorsultam. As the important effect of water on regioselectivity, the gamma-adducts were kinetically formed from monosubstituted allylic reagents in the presence
Mild Rhodium(III)-Catalyzed Direct CH Allylation of Arenes with Allyl Carbonates
作者:Honggen Wang、Nils Schröder、Frank Glorius
DOI:10.1002/anie.201301165
日期:2013.5.10
All(yl) possible! A rhodium(III)‐catalyzed intermolecular directCHallylation reaction utilizing readily accessible allylcarbonates was developed. This method allows the allylation of electron‐neutral arenes, providing complete γ‐selectivity, high isomeric ratio, good substrate scope, and excellent functional group compatibility.
Ni-Catalyzed Reductive Allylation of Unactivated Alkyl Halides with Allylic Carbonates
作者:Yijing Dai、Fan Wu、Zhenhua Zang、Hengzhi You、Hegui Gong
DOI:10.1002/chem.201102984
日期:2012.1.16
catalytic Ni species in the presence of an environmentally benign Zn reductant, delivering allylated alkanes (see scheme). This unprecedented approach allowed a variety of unactivated alkylhalides and substituted allyliccarbonates to regioselectively afford E‐alkenes in good to excellent yields.
of thiols with stable allylcarbonate and allylacetate reagents offers several advantages over established reactions for the formation of thioethers. We could demonstrate that Pd/BIPHEPHOS is a catalyst system which allows the transition metal-catalyzed S-allylation of thiols with excellent n-regioselectivity. Mechanistic studies showed that this reaction is reversible under the applied reaction conditions