1.
Acta Crystallogr E Crystallogr Commun
; 77(Pt 9): 903-906, 2021 Sep 01.
Article
in English
| MEDLINE
| ID: mdl-34584759
ABSTRACT
The structure of the title compound, C27H46N2, at 93â K has monoclinic (P21/n) symmetry. The title compound was prepared by treatment of 2-(2,6-diiso-propyl-phenyl)-3,3-dimethyl-2-aza-spiro-[4.5]dec-1-en-2-ium hydrogen dichloride with two equivalents of lithium di-ethyl-amide. Characterization of the title compound by single-crystal X-ray diffraction and 1H and 13C NMR spectroscopy is presented. Formation of the di-ethyl-amine adduct of the cyclic(alk-yl)(amino)-carbene (CAAC) was unexpected, as deprotonation using lithium diiso-propyl-amide results in free CAAC formation.