Direct microwave synthesis of N,N′-diacylhydrazines and boc-protected hydrazides by in situ carbonylations under air

被引:33
|
作者
Herrero, MA [1 ]
Wannberg, J [1 ]
Larhed, M [1 ]
机构
[1] Univ Uppsala, Dept Med Chem, S-75123 Uppsala, Sweden
关键词
microwave; carbonylation; molybdenum hexacarbonyl; hydrazide; fluorous;
D O I
10.1055/s-2004-832837
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
Palladium-catalyzed hydrazidocarbonylations of aryl iodides and bromides were performed by controlled microwave irradiation, employing Mo(CO)(6) as a convenient CO source. A fluorous phosphine ligand was succesfully used to recycle the catalytic system. Finally, dehydration of a diacylhydrazine to the corresponding 1,3,4-oxadiazole was achieved with POCl3 in a one-pot procedure.
引用
收藏
页码:2335 / 2338
页数:4
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