异氰基乙酸乙酯 、 2-甲氧基-4-硝基苯甲酰氯 在
三乙胺 作用下,
以
N,N-二甲基甲酰胺 为溶剂,
以17.2 g (0.059 mol; 65.3% based on the 2-methoxy-4-nitrobenzoic acid)的产率得到5-(2-methoxy-4-nitrophenyl)-4-carboethoxyoxazole
参考文献:
名称:
Process of preparing 5-(2-substituted-4-nitrophenyl)-oxazole, novel oxazole compound, and process of preparing the same
use of diverse oxazoles 2 as suitable substrates in cross‐coupling reactions with azole‐5‐carboxylic acids 1 under palladium catalysis in the presence of copper carbonate. The reaction is successful for the synthesis of a range of bis(azole)s, and has been applied to the convergent synthesis of challenging poly azoles (dcpe=bis(dicyclohexylphosphino)ethane, DMSO=dimethyl sulfoxide, M.S.=molecular sieves)
Process of preparing 5-(2-substituted-4-nitrophenyl)-oxazole, oxazole compound, and process of preparing the same
申请人:The Nippon Synthetic Chemical Industry Co., Ltd.
公开号:EP1186598A1
公开(公告)日:2002-03-13
A 5-(2-substituted-4-nitrophenyl)-oxazole is prepared by decarboxylating a 5-(2-substituted-4-nitrophenyl)-4-oxazolecarboxylic acid in an aprotic amide solvent containing a protic compound. A 5-(2-substituted-4-nitrophenyl)-oxazolecarboxylic acid and a 5-(2-substituted-4-nitrophenyl)-carboalkoxyoxazole, which are novel compounds, are provided.
Process of preparing 5-(2-substituted-4-nitrophenyl)-oxazole, novel oxazole compound, and process of preparing the same
申请人:THE NIPPON SYNTHETIC CHEMICAL INDUSTRY CO., LTD.
公开号:US20020035265A1
公开(公告)日:2002-03-21
A 5-(2-substituted-4-nitrophenyl)-oxazole is prepared by decarboxylating a 5-(2-substituted-4-nitrophenyl)-4-oxazolecarboxylic acid in an aprotic amide solvent containing a protic compound. A 5-(2-substituted-4-nitrophenyl)-oxazolecarboxylic acid and a 5-(2-substituted-4-nitrophenyl)-carboalkoxyoxazole, which are novel compounds, are provided.