A general route for the synthesis of pyrimido[4?,5?:4,5]thieno[2,3-c]pyridazine derivatives
摘要:
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 (dichloromethylene)-dimethylammonium chloride.
A general route for the synthesis of pyrimido[4?,5?:4,5]thieno[2,3-c]pyridazine derivatives
摘要:
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 (dichloromethylene)-dimethylammonium chloride.
A general route for the synthesis of pyrimido[4?,5?:4,5]thieno[2,3-c]pyridazine derivatives
作者:J. M. Quintela、M. C. Veiga、S. Conde、C. Peinador
DOI:10.1007/bf00817265
日期:——
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 (dichloromethylene)-dimethylammonium chloride.