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Chemistry

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Isolating Free Carbenes, their Mixed Dimers and Organic Radicals
 

Isolating Free Carbenes, their Mixed Dimers and Organic Radicals

Article DOI: 10.3791/59389-v 10:44 min April 19th, 2019
April 19th, 2019

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Summary

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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Synthesis Air-sensitive Compounds Carbenes Dimers Radicals Schlenk Line Cannulas Filtration Isolation Contamination Dry And Degassed Solvents Dry Glassware Visual Guideline Workflow Iminium Salt KHMDS Magnetic Stir Bar Rubber Septum Dinitrogen-filled Glove Box Straus Flask Diethylether
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