[4 + 1] Annulation of in-situ generated azoalkenes with amines: A powerful approach to access 1-substituted 1,2,3-triazoles was written by Wang, Hongwei;Ning, Yongquan;Sivaguru, Paramasivam;Zanoni, Giuseppe;Bi, Xihe. And the article was included in Chinese Chemical Letters in 2022.Quality Control of 2-Methoxyethylamine The following contents are mentioned in the article:
Here a base-mediated [4 + 1] annulation of azoalkenes generated in-situ from readily available difluoroacetaldehyde N-tosylhydrazones (DFHZ-Ts) with amines under relatively mild conditions was reported. This azide- and acetylene-free strategy provides facile access to diverse 1-substituted 1,2,3-triazole derivatives in high yield in a regiospecific manner. This transformation was great functional group tolerance and was suit a broad substrate scope. Furthermore, the application of this novel methodol. in the gram-scale synthesis of an antibiotic drug PH-027 and in the late-stage derivatization of several bioactive small mols. and clin. drugs demonstrated its generality, practicability and applicability. This study involved multiple reactions and reactants, such as 2-Methoxyethylamine (cas: 109-85-3Quality Control of 2-Methoxyethylamine).
2-Methoxyethylamine (cas: 109-85-3) belongs to ethers. Esters typically have a pleasant smell; those of low molecular weight are commonly used as fragrances and are found in essential oils and pheromones. Liquid esters of low volatility serve as softening agents for resins and plastics. Esters also include many industrially important polymers. Polymethyl methacrylate is a glass substitute sold under the names Lucite and Plexiglas; polyethylene terephthalate is used as a film (Mylar) and as textile fibres sold as Terylene, Fortrel, and Dacron.Quality Control of 2-Methoxyethylamine
Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem