Nickel-Catalyzed Cross-Electrophile Coupling between C(sp<sup>2</sup>)–F and C(sp<sup>2</sup>)–Cl Bonds by the Reaction of <i>ortho</i>-Fluoro-Aromatic Amides with Aryl Chlorides
作者:Itsuki Nohira、Naoto Chatani
DOI:10.1021/acscatal.1c01102
日期:2021.4.16
between C(sp2)–Fbonds in ortho-fluoro-substituted aromatic amides and C(sp2)–Cl bonds in aryl chlorides in the presence of Zn as a reductant and LiOtBu as a base, and LiCl and ZnCl2 as additives is reported. The reaction displayed excellent functional group tolerance and a broad substrate scope. The reaction was also applicable to cross-electrophile coupling between C(sp2)–F and C(sp2)–O bonds in an
在锌为还原剂和LiO t Bu为原子的情况下,邻氟取代的芳族酰胺中的C(sp 2)-F键与芳基氯中的C(sp 2)-Cl键之间的镍催化交叉亲电子偶联。据报道,LiCl和ZnCl 2作为添加剂。该反应显示出优异的官能团耐受性和广泛的底物范围。该反应也适用于甲苯磺酸芳基酯和三氟甲磺酸酯衍生物中C(sp 2)–F和C(sp 2)–O键之间的亲电子交联。
Substituted 2-phenyl-4-quinolone-3-carboxylic acid compounds and their use as antitumor agents
申请人:Kuo Sheng-Chu
公开号:US20050032832A1
公开(公告)日:2005-02-10
Substituted 2-phenyl-4-quinolone-3-carboxylic acid derivatives and their salts were synthesized. The results of preliminary screening revealed that these compounds are potent in killing solid tumor cancers.
Nickel-Catalyzed Denitrogenative Cross-Coupling Reaction of 1,2,3-Benzotriazin-4(3<i>H</i>)-ones with Organoboronic Acids: An Easy Access to<i>Ortho</i>-Arylated and Alkenylated Benzamides
作者:Madasamy Hari Balakrishnan、Kotturaja Sathriyan、Subramaniyan Mannathan
DOI:10.1021/acs.orglett.8b01401
日期:2018.7.6
A novel nickel-catalyzed approach to synthesize ortho-arylated and alkenylated benzamides in good to high yields via a denitrogenative cross-coupling reaction of 1,2,3-benzotriazin-4(3H)-ones with organoboronic acids is described. The reaction proceeds through a five-membered azanickelacyclic intermediate with the extrusion of a nitrogen molecule. Moreover, the resulting ortho-arylated benzamides were