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Regio- and Stereoselective Ni-Catalyzed 1,4-Hydroboration of 1,3-Dienes: Access to Stereodefined (Z)-Allylboron Reagents and Derived Allylic Alcohols
被引:111
|作者:
Ely, Robert J.
[1
]
Morken, James P.
[1
]
机构:
[1] Boston Coll, Dept Chem, Merkert Chem Ctr, Chestnut Hill, MA 02467 USA
关键词:
RHODIUM COMPLEXES;
CONJUGATED DIENES;
HYDROBORATION;
NICKEL;
CATECHOLBORANE;
LIGANDS;
D O I:
10.1021/ja910750b
中图分类号:
O6 [化学];
学科分类号:
0703 ;
摘要:
A catalytic regio- and stereoselective 1,4-hydroboration of 1,3-dienes was accomplished with pinacolborane in the presence of Ni(cod)(2) and PCy(3). This reaction exhibits broad substrate scope operating oil a range of Substituted dienes and Occurs with generally high levels of selectivity and efficiency. Reactivity patterns Suggest that the reactive conformation of the diene is the S-cis form. The intermediate allylboronate call be oxidized to stereodefined allylic alcohols or can be used in stereoselective carbonyl addition reactions.
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页码:2534 / +
页数:3
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