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April 19, 2019
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We present protocols for the isolation of stable heterocyclic carbenes. The synthesis of a cyclic (alkyl)(amino) carbene (CAAC) and an N-heterocyclic carbene (NHC) is demonstrated using filter cannulas and Schlenk technique. We furthermore present the synthesis of the related oxygen-sensitive, electron-rich mixed “Wanzlick dimer” and the reduced stable organic radical.
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Grünwald, A., Goodner, S. J., Munz, D. Isolating Free Carbenes, their Mixed Dimers and Organic Radicals. J. Vis. Exp. (146), e59389, doi:10.3791/59389 (2019).
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