103607-49-4Relevant academic research and scientific papers
THREE-DIMENSIONAL STRUCTURES OF 1-ACYL-5-HYDROXYPYRAZOLIDINES
Dovgilevich, A. V.,Zelenin, K. N.,Espenbetov, A. A.,Struchkov, Yu. T.,Bezhan, I. P.,et al.
, p. 1034 - 1039 (2007/10/02)
It was shown by x-ray diffraction analysis and PMR spectroscopy that 1-acyl-5-hydroxy- and -5-hydrazinopyrazolidines have a conformation with an axial orientation of the functional group attached to the C(5) atom.The 1-salicylyl derivatives constitute an exception: in methanol solutions they exist in a conformation with an equatorial hydroxy group, whereas in dimethylformamide (DMF) the ring undergoes partial opening to give the corresponding β-hydrazido aldehydes.
