Process for preparing 4-substituted imidazo[1,2-a]quinoxalines

Details Process for preparing 4-substituted imidazo[1,2-a]quinoxalines Process for preparing 4-substituted imidazo[1,2-a]quinoxalines

1977-12-08

1980-04-15

Berch, Mark L.

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

Organic compounds

Nitrogen attached directly or indirectly to the purine ring...

548346, 542458, C07D48704, C07D23360

Patent

active

041985087

ABSTRACT:
Preparation of 4-substituted imidazo[1,2-a]quinoxalines by cyclizing a compound of the formula: ##STR1## with phosphorous oxychloride wherein X.sup.2 is a group --R.sup.5 or --NHR.sup.2 where R.sup.5 and R.sup.2 are hydrogen or various organo groups.

REFERENCES:
Siminov et al., Chem. Abs. 76, 25242n (1972).

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