An Efficient and Scalable Ritter Reaction for the Synthesis of <i>tert</i>-Butyl Amides
作者:Jean C. Baum、Jacqueline E. Milne、Jerry A. Murry、Oliver R. Thiel
DOI:10.1021/jo8024797
日期:2009.3.6
A scalable procedure for the conversion of nitriles to N-tert-butyl amides via the Ritter reaction was optimized employing tert-butyl acetate and aceticacid. The reaction has a broad scope for aromatic, alkyl, and α,β-unsaturated nitriles.
Efficient Approach to Amide Bond Formation with Nitriles and Peroxides: One-Pot Access to Boronated β-Ketoamides
作者:Babasaheb Sopan Gore、Gopal Chandru Senadi、Amol Milind Garkhedkar、Jeh-Jeng Wang
DOI:10.1002/adsc.201700532
日期:2017.9.4
An efficient, mild and practical approach for the synthesis of amides from nitriles and peroxides is reported in the presence of boron trifluoride ethereate. In this protocol, we utilized peroxides as C1 synthons for the amidationreaction. Also, we successfully prepared boron‐containing β‐ketoamides in a one‐pot assembly from β‐ketonitriles. A variety of functional groups were tolerated in moderate
A new and efficient method for the synthesis of amides via palladium-catalyzed C−C coupling of arylhalides with isocyanides is reported, by which a series of amides were formed from readily available starting materials under mild conditions. This transformation could extend its use to the synthesis of natural products and significant pharmaceuticals.
Oxidative C−H/C−H Cross-Coupling Reactions between <i>N</i>
-Acylanilines and Benzamides Enabled by a Cp*-Free RhCl<sub>3</sub>
/TFA Catalytic System
作者:Yang Shi、Luoqiang Zhang、Jingbo Lan、Min Zhang、Fulin Zhou、Wenlong Wei、Jingsong You
DOI:10.1002/anie.201804528
日期:2018.7.16
oxidative C−H/C−H cross‐coupling reaction between an N‐acylaniline and a benzamide has been accomplished for the first time. This process constitutes a step‐economic and highly efficient pathway to 2‐amino‐2′‐carboxybiaryl scaffolds from readily available substrates. A Cp*‐free RhCl3/TFA catalytic system was developed to replace the [Cp*RhCl2]2/AgSbF6 system generally used in oxidative C−H/C−H cross‐coupling
times, the use of strong protic acids in aqueous media, toxicity and tedious work-up Either isobutylene or t-butanol in the presence of acid is employed to generate the tbutyl cation. In spite of this widely used method, some inherent problems exist; for example, the exothermic reaction of isobutylene, a gas, with acids and its susceptibility to subsequent cationic polymerization. Another complication