Synthesis of optically active imidazolines, azapenams, dioxocyclams, and bis-dioxocyclams

被引：98

作者：

Hsiao, Y ^{[1
]}

Hegedus, LS ^{[1
]}

机构：

[1] COLORADO STATE UNIV,DEPT CHEM,FT COLLINS,CO 80523

来源：

JOURNAL OF ORGANIC CHEMISTRY | 1997年 / 62卷 / 11期

关键词：

D O I：

10.1021/jo962343e

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

Optically active 4-methyl-4-carbomethoxy-Delta(2)-imidazoline was efficiently synthesized on a multigram scale. Photolysis with (methoxymethylcarbene)chromium complex produced the optically active azapenam in good yield and with high stereoselectivity. Acid-catalyzed dimerization followed by reduction produced the corresponding optically active dioxocyclam in good yield. Using a bis-carbene complex, an optically active bis-dioxocyclam was produced in excellent yield.

引用

页码：3586 / 3591

页数：6

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