Preparation of five-membered nitrogen heterocycles

Details Preparation of five-membered nitrogen heterocycles Preparation of five-membered nitrogen heterocycles

1994-06-27

1995-10-31

Springer, David B.

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

548560, 548565, C07D207263, C07D20738, C07D20702

Patent

active

054630797

ABSTRACT:
A process for preparing five-membered nitrogen heterocycles of the general formula I ##STR1## where R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, R.sup.6, R.sup.7, R.sup.8 are hydrogen,

REFERENCES:
patent: 2689263 (1952-04-01), Schmidle et al.
Z. obsc. Chim. English Ed. (1956) pp. 2125-2127.
Synlett. (1991) pp. 693-694.
Journal of the American Chemical Society, (1981) pp. 5969-5972 Trost and Molander.
Tetrahedron Letters (1981), PP. 2557-2578, Tsuji, Jiro, Kataoka, Hideaki, Kobayashi and Yuichi.
Tetrahedron Letters (1981), pp. 195-198, Overman and Flippin.

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