Highly Regioselective Pd-Catalyzed Intermolecular Aminoacetoxylation of Alkenes and Evidence for <i>cis</i>-Aminopalladation and S<sub>N</sub>2 C−O Bond Formation
作者:Guosheng Liu、Shannon S. Stahl
DOI:10.1021/ja061706h
日期:2006.6.1
of alkenes with phthalimide as the nitrogen source and PhI(OAc)2 as the stoichiometric oxidant and source of acetate. These reactions are highly regio- and diastereoselective, and mechanistic studies reveal that the reaction proceeds via cis-aminopalladation of the alkene followed by oxidative cleavage of the intermediate Pd-C bond with inversion of stereochemistry.
Enantioselective and Diastereodivergent Allylation of Propargylic C–H Bonds
作者:Jin Zhu、Yidong Wang、Aaron D. Charlack、Yi-Ming Wang
DOI:10.1021/jacs.2c07297
日期:2022.8.31
An iridium-catalyzed stereoselective coupling of allylicethers and alkynes to generate 3,4-substituted 1,5-enynes is reported. Under optimized conditions, the coupling products are formed with excellent regio-, diastereo-, and enantioselectivities, and the protocol is functional group tolerant. Moreover, we report conditions that allow the reaction to proceed with complete reversal of diastereoselectivity