A new approach towards the synthesis of 3-amino-6-(hetero)arylpyridazines based on palladium catalyzed cross-coupling reactions

被引:61
作者
Maes, BUW
Lemière, GLF
Dommisse, R
Augustyns, K
Haemers, A
机构
[1] Univ Antwerp, RUCA, Dept Chem, B-2020 Antwerp, Belgium
[2] Univ Instelling Antwerp, Dept Med Chem, B-2610 Wilrijk, Belgium
关键词
palladium and compounds; Suzuki reactions; Stille reactions; pyridazines;
D O I
10.1016/S0040-4020(00)00083-1
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
The synthesis of 3-amino-6-(hetero)arylpyridazines via palladium catalyzed cross-coupling reactions (Suzuki, Stille) on 3-amino-6-chloropyridazine (1a) and 3-amino-6-iodopyridazine (1b) has been investigated. Comparison of the results shows that there is no need to start from 1b. An improved method for the synthesis of compound 1b from 1a is also described. (C) 2000 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码:1777 / 1781
页数:5
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