Magnesium-Catalyzed Hydroboration of Pyridines

被引:207
作者
Arrowsmith, Merle [1 ]
Hill, Michael S. [1 ]
Hadlington, Terrance [1 ]
Kociok-Koehn, Gabriele [1 ]
Weetman, Catherine [1 ]
机构
[1] Univ Bath, Dept Chem, Bath BA2 7AY, Avon, England
基金
英国工程与自然科学研究理事会;
关键词
HETEROCYCLES; BUTYLLITHIUM; COMPLEXES; CALCIUM; ADDUCT;
D O I
10.1021/om2008138
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
Reaction of catalytic quantities of a beta-diketiminato n-butylmagnesium complex with pinacol-borane in the presence of pyridine derivatives provides facile access to borylated dihydropyridines. The reaction is applicable to a wide range of monocyclic and fused-ring pyridine derivatives and catalytic turnover is proposed to occur through a well-defined sequence of Mg-H/pyridine dearomatization and Mg-N/B-H sigma bond metathesis steps.
引用
收藏
页码:5556 / 5559
页数:4
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