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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 35, Number 2
BKCSDE 35(2)
February 20, 2014 

Efficient and Selective Construction of Pyrrolo[3,2-d]pyrimidine Derivatives
Ping He*, Jing Wu, Yang-Gen Hu, Zai-Fang Li, Qiu-Fei Hou, Yan-Ling Wang, Kun Zhao, Erli Zhang
Pyrrolo[3,2-d]pyrimidine, Aza-Wittig reaction, Iminophosphorane
An efficient and selective method for the synthesis of ethyl 2-amino/aryloxy-3-aryl-4-oxo-5-phenyl-4,5- dihydro-3H-pyrrolo[3,2-d]pyrimidine-7-carboxylate derivatives has been developed. The main process involved the reaction of diethyl 1-phenyl-3-((triphenylphosphoranylidene)amino)-1H-pyrrole-2,4-dicarboxylate and aromatic isocyanates, followed by addition of amines/phenols in the presence of catalytic amount of sodium ethoxide or solid potassium carbonate.
617 - 621
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