Generation of N–H Imines from α-Azidocarboxylic Acids through Ru-Catalyzed Decarboxylation

Autor: Hwi Yul Jo, Ewa Pietrasiak, Young Ho Rhee, Jeong Min Lee, Jaiwook Park, Eunsung Lee
Rok vydání: 2021
Předmět:
Zdroj: The Journal of Organic Chemistry. 86:17409-17417
ISSN: 1520-6904
0022-3263
DOI: 10.1021/acs.joc.1c01841
Popis: A new method for the synthesis of N-H imines from α-azidocarboxylic acids was developed, which proceeds through decarboxylative C-C bond cleavage catalyzed by a commercial diruthenium complex ([CpRu(CO)2]2) under visible light irradiation at room temperature within several minutes. The reactive products undergo condensation, which forms cyclic trimers (2,4,6-trialkylhexahydro-1,3,5-triazines) or linear N,N'-bis(arylmethylidene)arylmethanediamines in quantitative yields. Alternatively, the N-H imines can be trapped with benzylamine and 2-(aminomethyl)aniline, providing stable N-benylimines and tetrahydroquinazolines, respectively. Subsequent oxidation of tetrahydroquinazolines produced quinazolines.
Databáze: OpenAIRE