The preparation of imides via the palladium-catalyzed coupling reaction of organostannanes is described. The palladium-catalyzed coupling reaction of aryl-, heteroaryl-, and alkenyl(tributyl)stannanes with methyl N-[methoxy(methylthio)methylene]carbamate in the presence of Cu(I) thiophene-2-carboxylate (CuTC) affords imino ethers, which are converted to the corresponding imides in high yield through acid hydrolysis.
The present invention is directed to novel substituted pyrroline compounds useful as kinase inhibitors and methods for treating or ameliorating a kinase mediated disorder.
本发明涉及新型取代吡咯烯化合物,可用作激酶抑制剂,并用于治疗或改善激酶介导的疾病的方法。
PREPARATION OF IMIDES vIA THE PALLADIUM-CATALYZED COUPLING REACTION OF ORGANOSTANNANES WITH METHYL N-[METHOXY(METHYLTHIO)METHYLENE]CARBAMATE
The preparation of imides via the palladium-catalyzed coupling reaction of organostannanes is described. The palladium-catalyzed coupling reaction of aryl-, heteroaryl-, and alkenyl(tributyl)stannanes with methyl N-[methoxy(methylthio)methylene]carbamate in the presence of Cu(I) thiophene-2-carboxylate (CuTC) affords imino ethers, which are converted to the corresponding imides in high yield through acid hydrolysis.
An Experimental and Computational Investigation of the Diels−Alder Cycloadditions of Halogen-Substituted 2(<i>H</i>)-Pyran-2-ones
作者:Kamyar Afarinkia、Michael J. Bearpark、Alexis Ndibwami
DOI:10.1021/jo048213k
日期:2005.2.1
Diels−Alder reactions of 3- and 5-halo-subsituted 2(H)-pyran-2-ones with both electron-rich and electron-deficient dienophiles afford stable and readily isolable bridged bicyclic lactone cycloadducts. These cycloadditions proceed with excellent regioselectivity and very good stereoselectivity. In contrast, Diels−Alder reactions of 4-halo-subsituted 2(H)-pyran-2-ones afford cycloadducts which are very