Selective carbophilic addition of organolithiums to thioamides. A novel synthesis of unsymmetrical ketones and α-alkylated amines
作者:Yoshinori Tominaga、Shinya Kohra、Akira Hosomi
DOI:10.1016/s0040-4039(01)81034-0
日期:1987.1
Thioamides, readily available from aldehydes, sulfur and secondary amines, can be converted to unsymmetrical ketones by the carbophilic addition of organolithiums to the thiocarbonyl group. Reduction of the intermediates with lithiumaluminumhydride gives α-alkylated or α-arylated amines.
Stereo- and Regioselective Gold-Catalyzed Hydroamination of Internal Alkynes with Dialkylamines
作者:Kevin D. Hesp、Mark Stradiotto
DOI:10.1021/ja109192w
日期:2010.12.29
a state-of-the-art precatalyst for the stereoselective hydroamination of internal aryl alkynes with dialkylamines to afford E-enamine products. Substrates featuring a diverse range of functional groups on both the amine (ether, sulfide, N-Boc amine, fluoro, nitrile, nitro, alcohol, N-heterocycles, amide, ester, and carboxylic acid) and alkyne (ether, N-heterocycles, N-phthalimide amines, and silyl