Bu4N+N3-, prepd. by reaction of Bu4N+OH- with NaN3 reacted with RCOCl(R = Me, Et, Pr, Me2CHCH2, Me3C, Cl(CH2)3, Ph), followed by Curtiusrearrangement to give usually better than 50% RNCO. When PhNH2 wasadded to the reaction mixt. after the evolution of N ceased, 52-89%RNHCONHPh were obtained. [on SciFinder(R)]
CITATION STYLE
Brändström, A., Lamm, B., Palmertz, I., Westbye, O., Guthenberg, C., & Mannervik, B. (1974). The Use of Tetrabutylammonium Azide in the Curtius Rearrangement. Acta Chemica Scandinavica, 28b, 699–701. https://doi.org/10.3891/acta.chem.scand.28b-0699
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