Towards a Comprehensive Hydride Donor Ability Scale
作者:Markus Horn、Ludwig H. Schappele、Gabriele Lang-Wittkowski、Herbert Mayr、Armin R. Ofial
DOI:10.1002/chem.201202839
日期:2013.1.2
Rates of hydride transfer from several hydridedonors to benzhydrylium ions have been measured at 20 °C and used for the determination of empirical nucleophilicity parameters N and sN according to the linear free energy relationship log k20 °C=sN(N+E). Comparison of the rate constants of hydride abstraction by tritylium ions with those calculated from the reactivity parameters sN, N, and E showed fair
Palladium-Catalyzed Diarylmethyl C(sp<sup>3</sup>)–C(sp<sup>2</sup>) Bond Formation: A New Coupling Approach toward Triarylmethanes
作者:Ying Xia、Fangdong Hu、Zhenxing Liu、Peiyuan Qu、Rui Ge、Chen Ma、Yan Zhang、Jianbo Wang
DOI:10.1021/ol400690t
日期:2013.4.5
Palladium-catalyzed reductive coupling reactions between N-tosylhydrazones and aryl halides lead to the formation of C(sp(3))-C(sp(2)) bonds. This approach provides a general route for the synthesis of triarylmethanes.