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Abstract

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Paper | Special issue | Vol 58, No. 1, 2002, pp.301-310
Published online:
DOI: 10.3987/COM-02-S(M)22
Preparation of Novel Heteroisoindoles from Nitropyridines and Nitropyridones

Takashi Murashima,* Keiji Nishi, Ken-ichi Nakamoto, Atsushi Kato, Ryuji Tamai, Hidemitsu Uno, and Noboru Ono*

*Departmnt of Chemistry, Faclty of Science, Ehime University, Matsuyama 790-8577, Japan

Abstract

The reaction of nitropyridine derivatives with ethyl isocyanoacetate in the presence of 1,8-diazabicyclo[5.4.0]undecene proceeded tandem cyclization to give polycyclic pyrrolopyridines or imidazopyridines. On the other hand, N-protected 3-nitro- and 5-nitropyridones and N,N-diprotected 5-nitrouracil gave corresponding bicyclic pyrroles in good yields under the similar conditions.

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