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Palladium Catalyzed Carbonylative Coupling of Alkyl Boron Reagents with Bromodifluoroacetamides
被引:30
|作者:
Yin, Hongfei
[1
,2
]
Kumke, Jakob J.
[1
,2
]
Domino, Katrine
[1
,2
]
Skrydstrup, Troels
[1
,2
]
机构:
[1] Aarhus Univ, Interdisciplinary Nanosci Ctr iNANO, Carbon Dioxide Activat Ctr CADIAC, Gustav Wieds Vej 14, DK-8000 Aarhus C, Denmark
[2] Aarhus Univ, Dept Chem, Gustav Wieds Vej 14, DK-8000 Aarhus C, Denmark
来源:
基金:
新加坡国家研究基金会;
关键词:
palladium catalysis;
carbonylative Suzuki;
alkyl substrates;
carbon-13;
isotope-labeling;
fluoride;
CROSS-COUPLINGS;
ALPHA-ARYLATION;
SUZUKI REACTIONS;
ARYL;
BROMIDES;
FLUORINE;
DIFLUOROALKYLATION;
CHLORIDES;
ACIDS;
ALPHA;
ALPHA-DIFLUOROKETONES;
D O I:
10.1021/acscatal.8b00420
中图分类号:
O64 [物理化学(理论化学)、化学物理学];
学科分类号:
070304 ;
081704 ;
摘要:
A catalytic protocol for the preparation of alpha,alpha-difluoro-beta-alkyl-beta-ketoamides is developed employing a Pd-mediated carbonylative Suzuki coupling between alkylboron reagents and bromodifluoroacetamides with COgen as the CO source. The reaction reveals good functional group tolerance providing a broad selection of alpha,alpha-difluoro-beta-alkyl-beta-ketoamides in moderate to good yields, which represent useful precursors for further synthetic manipulation. Finally, the methodology is amenable to C-13-isotope labeling at the ketone carbon applying C-13-COgen.
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页码:3853 / +
页数:11
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