1,2-Dialkyl-2,3-dihydrobenzimidazoles have been produced by reduction of the aromatic parent compounds with lithium aluminium hydride and also directly by cyclization of the appropriate nitrenes generated from azides or from nitro-compounds by deoxygenation with trialkyl phosphites. The factors influencing the stability of the title compounds have been studied.
R. Garner, G. V. Garner and H. Suschitzky, J. Chem. Soc. C, 1970, 825 DOI: 10.1039/J39700000825
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