Efficient Three-Component Strecker Reaction of Aldehydes/Ketones via NHC-Amidate Palladium(II) Complex Catalysis
作者:Jamie Jarusiewicz、Yvonne Choe、Kyung Soo Yoo、Chan Pil Park、Kyung Woon Jung
DOI:10.1021/jo900163w
日期:2009.4.3
A simple and efficient one-pot, three-component method has been developed for the synthesis of α-aminonitriles. This Streckerreaction is applicable for aldehydes and ketones with aliphatic or aromatic amines and trimethylsilyl cyanide in the presence of a palladium Lewis acid catalyst in dichloromethane solvent at room temperature.
Mechanochemical Strecker Reaction: Access to α-Aminonitriles and Tetrahydroisoquinolines under Ball-Milling Conditions
作者:José G. Hernández、Mathias Turberg、Ingo Schiffers、Carsten Bolm
DOI:10.1002/chem.201603057
日期:2016.10.4
Strecker reaction for the synthesis of α‐aminonitriles was developed. The milling of aldehydes, amines, and potassiumcyanide in the presence of SiO2 gave the corresponding α‐aminonitriles in good to high yields. The high efficiency of the mechanochemical Strecker‐type multicomponent reaction allowed the one‐pot synthesis of tetrahydroisoquinolines after a subsequent internal N‐alkylation reaction.
cyanide to the in situ formed imines. A comparative study of the 31P-NMR (NuclearMagneticResonance) along with IR (Infrared) data analysis for the Kraft lignin and methylated Kraft lignin samples ascertained the importance of the free hydroxyl groups in the activation of the mechanochemical reaction. The solvent-free mechanochemical Strecker reaction was then coupled with a lactamization process leading
Mechanochemical Activation of Iron Cyano Complexes: A Prebiotic Impact Scenario for the Synthesis of α-Amino Acid Derivatives
作者:Carsten Bolm、Rita Mocci、Christian Schumacher、Mathias Turberg、Francesco Puccetti、José G. Hernández
DOI:10.1002/anie.201713109
日期:2018.2.23
Mechanochemicalactivation of ironcyanocomplexes by ball milling results in the formation of HCN, which can be trapped and incorporated into α‐aminonitriles. This prebioticimpactscenario can be extended by mechanochemically transforming the resulting α‐aminonitriles into α‐amino amides using a chemical route related to early Earth conditions.