37637-20-0Relevant academic research and scientific papers
Method for preparing N-methyl azepine-4-one hydrochloride
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Paragraph 0041-0043; 0046-0051, (2021/06/09)
The invention discloses a method for preparing N-methyl azepine-4-one hydrochloride. According to the method, 4-oxime cyclohexanone is taken as a raw material, aza-cycloheptane-2,5-diketone is obtained under a Beckmann rearrangement condition, aza-cycloheptane-2,5-diketone and ethylene glycol are subjected to condensation to generate ketal, amide is reduced through red aluminum, methylation is performed, ethylene glycol is removed under a hydrochloric acid condition, and finally N-methyl azepine-4-one hydrochloride is obtained. The invention provides a safe, reliable and efficient synthetic route, the raw materials are low in price, the reaction conditions are mild, explosive diazomethane does not need to be used, methyl acrylate which is easy to polymerize and high in carcinogenesis is also not needed, and the method is more suitable for large-scale industrial production.
Azido-Schmidt reaction for the formation of amides, imides and lactams from ketones in the presence of FeCl3
Yadav,Reddy, B.V. Subba,Reddy, U.V. Subba,Praneeth
, p. 4742 - 4745 (2008/12/21)
Ketones undergo smooth rearrangement with TMSN3 in the presence of FeCl3 under extremely mild conditions to provide the corresponding amides, imides and lactams in good yields with high selectivity. This method is very useful for the preparation of a wide range of amides, imides and lactams from ketones. The use of FeCl3 makes this method simple, convenient and cost-effective.
SYNTHESIS AND ABSOLUTE CONFIGURATION OF 1,7-DIAZASPIRONONANE-2,6-DIONE
Majer, Zsuzsanna,Kajtar, Marton,Tichy, Milos,Blaha, Karel
, p. 950 - 960 (2007/10/02)
Synthesis and determination of absolute configuration of the title compound are described and its CD spectrum is presented.
