
Monatshefte fur Chemie p. 739 - 746 (1996)
Update date:2022-08-05
Topics:
Quintela, J. M.
Veiga, M. C.
Conde, S.
Peinador, C.
A facile synthesis of 8-substituted pyrimido<4',5':4,5>thieno<2,3-c>pyridazines (6a-i) has been accomplished.The sequence involves the ring closure of a heterocyclic aminonitrile precursor (3) after reaction with (dichlomethylene)-dimethylammonium chloride. - Keywords: Pyrimido<4',5':4,5>thieno<2,3-c>pyridazine derivatives; Thieno<2,3-c>pyridazine-6-carbonitrile; N,N-Dimethyldichloromethyleniminium chloride; Enaminonitrile
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(2002)Doi:10.1016/0957-4166(96)00385-0
(1996)Doi:10.1016/S0040-4039(00)73805-6
(1993)Doi:10.1016/S0960-894X(00)00464-9
(2000)Doi:10.1016/j.bmcl.2005.05.111
(2005)Doi:10.1016/S0020-1693(01)00775-7
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