Heterocyclic carbanions. Synthesis of 2-substituted imidazole and benzimidazoles and of 3-substituted pyrazoles by lithiation of N-(dialkylamino)methyl heterocycles
作者:A. R. Katritzky、Gordon W. Rewcastle、Wei Qiang Fan
DOI:10.1021/jo00259a014
日期:1988.11
Formaldehyde: a reagent for the simultaneous protection of nucleophilic centers and the activation and stabilization of alternative locations to electrophilic attack. I. A new synthetic method for the 2-substitution of N-unsubstituted benzimidazoles: formaldehyde as a versatile protecting agent for heterocyclic NH
作者:Alan R. Katritzky、Kunihiko Akutagawa
DOI:10.1021/jo00273a032
日期:1989.6
KATRITZKY, ALAN R.;REWCASTLE, GORDON W.;FAN, WEI-QIANG, J. ORG. CHEM., 53,(1988) N4, C. 2685-2689
作者:KATRITZKY, ALAN R.、REWCASTLE, GORDON W.、FAN, WEI-QIANG
DOI:——
日期:——
Ooi, Hong Chin; Suschitzky, Hans, Journal of the Chemical Society. Perkin transactions I, 1982, # 12, p. 2871 - 2876