Crystal Structure of 2-(2,6-diisopropylphenyl)-N,Ndiethyl- 3,3-dimethyl-2-azaspiro[4.5]decan-1- amine: A Diethylamine Adduct of a Cyclic(alkyl)- (amino)carbene (CAAC)

Authors

Roxanne A. Naumann, Chapman University
Joseph W. Ziller, University of California, Irvine
Allegra Liberman-Martin, Chapman UniversityFollow

Document Type

Article

Publication Date

8-2021

Abstract

The structure of the title compound, C₂₇H₄₆N₂, at 93 K has monoclinic (P2₁/n) symmetry. The title compound was prepared by treatment of 2-(2,6-diiso­propyl­phenyl)-3,3-dimethyl-2-aza­spiro­[4.5]dec-1-en-2-ium hydrogen dichloride with two equivalents of lithium di­ethyl­amide. Characterization of the title compound by single-crystal X-ray diffraction and ¹H and ¹³C NMR spectroscopy is presented. Formation of the di­ethyl­amine adduct of the cyclic(alk­yl)(amino)­carbene (CAAC) was unexpected, as deprotonation using lithium diiso­propyl­amide results in free CAAC formation.

Comments

This article was originally published in Acta Crystallographica Section E: Crystallographic Communications, volume E77, in 2021. https://doi.org/10.1107/S2056989021007854

Recommended Citation

Naumann, R. A., Ziller, J. W., & Liberman-Martin, A. L. (2021). Acta Cryst. E77. https://doi.org/10.1107/S2056989021007854

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 License.