HIGHLY ENANTIOSELECTIVE CATALYTIC DIELS-ALDER ADDITION PROMOTED BY A CHIRAL BIS(OXAZOLINE)-MAGNESIUM COMPLEX

被引:263
作者
COREY, EJ
ISHIHARA, K
机构
[1] Department of Chemistry, Harvard University, Cambridge
关键词
D O I
10.1016/S0040-4039(00)61781-1
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
The new chiral bis(oxazoline) ligand 8 has been synthesized from (S)-phenylglycine and has been shown to form effective catalysts for enantioselective Diels-Alder addition in combination with ferric iodide, magnesium iodide or magnesium tetraphenylborate. Catalytic activation of the dienophile, 3-acryloyl-1,3-oxazolidine-2-one (4), in the magnesium system is proposed to involve tetrahedrally coordinated magnesium in a dipositive complex (10).
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页码:6807 / 6810
页数:4
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