PALLADIUM-CATALYZED CROSS-COUPLING REACTION OF ORGANOBORON COMPOUNDS WITH ORGANIC TRIFLATES

被引:353
作者
OHE, T [1 ]
MIYAURA, N [1 ]
SUZUKI, A [1 ]
机构
[1] HOKKAIDO UNIV,FAC ENGN,DEPT APPL CHEM,SAPPORO,HOKKAIDO 060,JAPAN
关键词
D O I
10.1021/jo00060a041
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
The cross-coupling reaction of 9-alkyl-9-borabicyclo[3.3.1]nonane (9-R-9-BBN), 1-alkenyl-1,3,2-benzodioxaborole, or aryl boronic acid with 1-alkenyl or aryl triflates in the presence of K3PO4 (1.5 equiv) and a catalytic amount of Pd(PPh3)4 or Cl2Pd(dppf) resulted in high yields. The reaction conditions are sufficiently mild so that a variety of functionalized alkenes, alkadienes, and arenes are readily obtained. The utility of the present reaction was demonstrated by the cyclization of omega-alkenyl triflates leading to a benzo-fused cycloalkene and bicyclic alkene via a hydroboration-intramolecular coupling sequence.
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页码:2201 / 2208
页数:8
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