Conformations of saturated six-membered ring phosphorus heterocycles. Chair-chair equilibria for cyclophosphamide, the 5,5-dimethyl derivative, and related 1,3,2-oxazaphosphorinanes. Relative conformational energies of nitrogen mustard and other R2N groups attached to phosphorus
Palladium-Catalyzed Markovnikov Hydroaminocarbonylation of 1,1-Disubstituted and 1,1,2-Trisubstituted Alkenes for Formation of Amides with Quaternary Carbon
Hydroaminocarbonylation of alkenes is one of the most promising yet challenging methods for the synthesis of amides. Herein, we reported the development of a novel and effective Pd-catalyzed Markovnikov hydroaminocarbonylation of 1,1-disubstituted or 1,1,2-trisubstituted alkenes with aniline hydrochloride salts to afford amides bearing an α quaternary carbon. The reaction makes use of readily available