38704-87-9

Upstream product

• 18714-63-1 1,2-diisopropyl-pyrazolidin-3-one 
• 545342-33-4 3-(N,N'-diisopropyl-hydrazino)-propionic acid methyl ester 
• 3711-34-0 N,N'-diisopropylhydrazine 

Relevant academic research and scientific papers

Sterically hindered nitrogen inversion in five-membered cyclic hydrazines

We found that (PriNH)2 with MeCHO form only pyrazoline 1 because of the competitive crotonization of the latter followed by reaction with hydrazine; pyrazoline 2, pyrazolidinones 6 and 9, pyrazolidinol 8 and pyrazolidine 7, in which the inversion of nitrogen atoms is hindered by bulky PriN substituents, were prepared for the first time, and the inversion barriers were determined.