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- W4323568154 abstract "Direct N-acylation of 1,2,3-NH-triazoles aimed at obtaining elusive N-acyl-1,2,3-triazoles was investigated. A preference for the formation of thermodynamically favoured N2 isomers was established and an influence of the hard/soft character of the electrophile on the regioselectivity of acylation was found. Although N-acylated 1,2,3-triazoles are hydrolytically unstable compounds, they were isolated and fully characterized, including crystal structure determination of examples of N1 and N2 acylated products by X-ray difraction. N1- and N2-acyltriazoles interconvert in the presence of Bronsted or Lewis acids, which explained the efficiency of triazole cleavage transformations proceeding via N1-acylated triazoles. Efficient synthesis of enamido triflates from NH-triazoles proceeding via the intermediacy of N2-acyl-1,2,3-triazoles was developed." @default.
- W4323568154 created "2023-03-09" @default.
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- W4323568154 date "2023-03-08" @default.
- W4323568154 modified "2023-10-18" @default.
- W4323568154 title "N-Acyl-1,2,3-triazoles - key intermediates in denitrogenative transformations" @default.
- W4323568154 doi "https://doi.org/10.26434/chemrxiv-2023-81glw" @default.
- W4323568154 hasPublicationYear "2023" @default.
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