Catalytic Asymmetric Construction of Chiral Hydropyridazines via Conjugate Addition of N-Monosubstituted Hydrazones to Enones
摘要:
The first example of a highly enantioselective and scalable formal diaza-ene reaction between N-monosubstituted hydrazones and enones catalyzed by a simple chiral primary-second diamine salt has been developed. The catalytic process provides a highly practical and stereoselective synthetic method for chiral hydropyridazines.
A class of novel 1H-indole-3-glyoxylamides is disclosed together with the use of such indole compounds for inhibiting sPLA.sub.2 mediated release of fatty acids for treatment of conditions such as septic shock.
Diastereo- and Enantioselective Conjugate Addition of α-Ketoesters to Nitroalkenes Catalyzed by a Chiral Ni(OAc)<sub>2</sub> Complex under Mild Conditions
A highly efficient, catalytic, diastereo- and enantioselectiveconjugateaddition of alpha-ketoesters to nitroalkenes has been devised. The reaction was applicable to various substrates. Notably, the combination of endogenous and exogenous bases was effective, allowing a small amount of the catalyst (0.1-1 mol % Ni) to promote the reaction efficiently. The synthetic utility of this reaction was demonstrated
Catalytic Asymmetric Construction of Chiral Hydropyridazines <i>via</i> Conjugate Addition of <i>N</i>-Monosubstituted Hydrazones to Enones
作者:Wenbin Wu、Xiaoqian Yuan、Juan Hu、Xinxin Wu、Yuan Wei、Zunwu Liu、Junzhu Lu、Jinxing Ye
DOI:10.1021/ol4020865
日期:2013.9.6
The first example of a highly enantioselective and scalable formal diaza-ene reaction between N-monosubstituted hydrazones and enones catalyzed by a simple chiral primary-second diamine salt has been developed. The catalytic process provides a highly practical and stereoselective synthetic method for chiral hydropyridazines.