Chiral Amidophosphane-Rhodium(I)-Catalyzed Asymmetric Conjugate Arylation of Acyclic Enones with Arylboronic Acids
作者:Qian Chen、Masami Kuriyama、Xinyu Hao、Takahiro Soeta、Yasutomo Yamamoto、Ken-ichi Yamada、Kiyoshi Tomioka
DOI:10.1248/cpb.57.1024
日期:——
A catalytic asymmetric conjugate arylation of acyclic alpha,beta-unsaturated ketones with arylboronic acids was catalyzed by 3 mol% of chiral amidomonophosphane 1-rhodium(I) in the presence of potassium hydroxide in a mixture of 1,4-dioxane and water at 70 degrees C to afford 1,4-conjugate arylated acyclic ketones with high enantiomeric excess in high chemical yield. Thirteen examples of the reaction
在1,4-二恶烷和水的混合物中,在氢氧化钾存在下,由3 mol%的手性酰胺基单膦-1-铑(I)催化无环α,β-不饱和酮与芳基硼酸的催化不对称共轭芳基化反应。 ℃下得到1,4-共轭芳基化的无环酮,其对映体过量高,化学产率高。该反应的十三个实例证明了催化体系的一般适用性。