504408-80-4Relevant articles and documents
Preparation method of polysubstituted pyrimidine
-
Paragraph 0232; 0233; 0234; 0235; 0236; 0237; 0238, (2017/07/26)
The invention belongs to the field of chemical synthesis, and particularly relates to a preparation method of polysubstituted pyrimidine. The method comprises the following step that amidine hydrochloride and a propiophenone compound react in the presence of an iron source compound, 1,10-phenanthroline and tetramethyl piperidine nitric oxide to obtain polysubstituted pyrimidine, wherein propiophenone or a propiophenone derivative is adopted as the propiophenone compound. According to the method, polysubstituted pyrimidine can be generated through a reaction by taking the propiophenone compound and amidine hydrochloride as reacting raw materials under combined promotion of the iron source compound, 1,10-phenanthroline and the tetramethyl piperidine nitric oxide; a strong alkaline or strong acidic environment is not needed, the reaction conditions are simple and mild, and the yield of polysubstituted pyrimidine is high. Experiment results show that the maximum yield of polysubstituted pyrimidine prepared through the method can reach 93% or above.
Aryl-aryl bonds formation in pyridine and diazine series. Diazines part 41
Boully, Ludovic,Darabantu, Mircea,Turck, Alain,Ple, Nelly
, p. 1423 - 1428 (2007/10/03)
The synthesis of several symmetrical polyaromatic compounds with pyridine or diazine units has been achieved by homocoupling of aryl halides with Pd(OAc)2 as catalyst. Cross-coupling reactions of aryl Grignard reagents with Fe(acac)3 as catalyst allowed the synthesis of various unsymmetrical polyaryl- or polyheteroaryl compounds with π-deficient rings.