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An efficient synthesis of biaryl diamides via Ullmann coupling reaction catalyzed by CuI in the presence of Cs2CO3 and TBAB
被引:7
|作者:
Dong, Fang
[1
]
Liu, Jian-Quan
[1
]
Wang, Xiang-Shan
[1
]
机构:
[1] Jiangsu Normal Univ, Sch Chem & Mat Sci, Jiangsu Key Lab Green Synth Funct Mat, Xuzhou 221116, Jiangsu, Peoples R China
关键词:
Biaryldiamide;
2-Bromobenzamide;
CuI;
Ullmann coupling;
Pd-free;
UNACTIVATED ARENES;
DIRECT ARYLATION;
BOND FORMATION;
H-ARYLATION;
DERIVATIVES;
PALLADIUM;
CLEAVAGE;
HALIDES;
D O I:
10.1007/s11164-018-3422-0
中图分类号:
O6 [化学];
学科分类号:
0703 ;
摘要:
CuI accompanyied by Cs2CO3 and TBAB was confirmed to be an efficient catalyst combination to promote an Ullmann coupling reaction. It facilitated 2-bromobenzamides to undergo a coupling reaction for the synthesis of symmetrical biaryldiamides in moderate yields at 120 degrees C under Pd-free conditions. [GRAPHICS] .
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页码:5271 / 5283
页数:13
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