Highly efficient synthesis of 1,1-difluoro-2-substituted-1,3-dienes and dienynes from gem-difluorohomoallenyl bromide via palladium-catalyzed cross-coupling reactions

被引:33
作者
Shen, QL [1 ]
Hammond, GB [1 ]
机构
[1] Univ Massachusetts, Dept Chem & Biochem, N Dartmouth, MA 02747 USA
关键词
D O I
10.1021/ol0160654
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
[GRAPHICS] A stable gem-difluoroallenylindium 1 is readily transformed to a potentially bifunctional electrophile 2, which can then undergo a transition-metal-promoted isomerization-cross coupling cascade to yield diene 3 and dienyne 4 in very high yields.
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页码:2213 / 2215
页数:3
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