Recently I am researching about CARBONYLATION REACTIONS; ORGANIC ELECTROSYNTHESIS; AMINES; CARBON; HYDROCARBONS; 2-YNAMIDES; EVOLUTION; CATALYSTS; GREEN, Saw an article supported by the National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [21520102003, 21702152]; 973 ProgramNational Basic Research Program of China [2012CB725302]; CAS Interdisciplinary Innovation Team; Hubei Province Natural Science Foundation of ChinaNatural Science Foundation of Hubei Province [2017CFA010]. Quality Control of 1,4-Dioxa-8-azaspiro[4.5]decane. Published in NATURE PUBLISHING GROUP in LONDON ,Authors: Zeng, L; Li, HR; Hu, JC; Zhang, DC; Hu, JY; Peng, P; Wang, SC; Shi, RY; Peng, JQ; Pao, CW; Chen, EL; Lee, JF; Zhang, H; Chen, YH; Lei, AW. The CAS is 177-11-7. Through research, I have a further understanding and discovery of 1,4-Dioxa-8-azaspiro[4.5]decane
Oxidative carbonylation using CO/O-2 is an attractive strategy to construct carbonyl compounds, but the explosive limit of the gas mixture hampers its application. Now, this safety issue is overcome in the aminocarbonylation of alkynes by replacing the external oxidant O-2 by electrochemistry facilitating a mild and safe reaction. Palladium-catalysed oxidative carbonylation using oxygen as the oxidant is an economical approach; however, the gas mixture of CO and air has an explosive limit of 12.5-74.0% that could hamper extensive application of this process. Herein we report an electrochemical aminocarbonylation of alkynes under atmospheric pressure in an undivided cell without an external oxidant. The transformation has a broad substrate scope (83 examples) that involves primary amines and ammonium salts. Furthermore, mechanistic studies through cyclic voltammetry, in situ infrared and quick-scanning X-ray absorption fine structure spectroscopy reveal the reasons for this protocol proceeding smoothly under electrochemical conditions.
Quality Control of 1,4-Dioxa-8-azaspiro[4.5]decane. About 1,4-Dioxa-8-azaspiro[4.5]decane, If you have any questions, you can contact Zeng, L; Li, HR; Hu, JC; Zhang, DC; Hu, JY; Peng, P; Wang, SC; Shi, RY; Peng, JQ; Pao, CW; Chen, EL; Lee, JF; Zhang, H; Chen, YH; Lei, AW or concate me.
Reference：
Piperidine – Wikipedia,
Piperidine | C5H7510N – PubChem