Morita-Baylis-Hillman reaction and cyclization of 1-(p-toluenesulfonyl)-1,3-butadiene with aldimines

被引:46
作者
Back, TG [1 ]
Rankic, DA [1 ]
Sorbetti, JM [1 ]
Wulff, JE [1 ]
机构
[1] Univ Calgary, Dept Chem, Calgary, AB T2N 1N4, Canada
关键词
D O I
10.1021/ol050658n
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
Aldimines 2 underwent Morita-Baylis-Hillman reaction with 1-(p-toluenesulfonyl)-1,3-butadiene (3) in the presence of 3-hydroxyquinucildine (HOD) to afford adducts 4. The E-isomers of the products cyclized to the corresponding functionalized piperidines 8 under base-catalyzed conditions. Simultaneous equilibration of (E)-4 and (Z)-4 was effected by photoisomerization to improve the efficiency of the cyclization.
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页码:2377 / 2379
页数:3
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