4926-19-6Relevant articles and documents
The Base-Promoted Annulation of 2-Hydrazinyl Pyridine and CO2 toward Triazolones
Wu, Xiaopeng,Sun, Song,Wang, Bingbing,Cheng, Jiang
supporting information, p. 3855 - 3859 (2017/11/15)
A base-promoted annulation of 2-hydrazinyl pyridine and atmospheric pressure of CO2 has been developed in the presence of silane as reducing reagent, affording a series of triazolones in moderate to excellent yields. CO2 served as a carbonyl source in this transfomation. Moreover, benzamidrazones also worked well under this procedure. Thus, it represents a green, sustainable and straightforward pathway to access triazolone frameworks. (Figure presented.).