AMINO ACID-DERIVED CHIRAL ACYL NITROSO-COMPOUNDS - DIASTEREOSELECTIVITY IN INTERMOLECULAR HETERO-DIELS-ALDER REACTIONS

被引:82
作者
RITTER, AR [1 ]
MILLER, MJ [1 ]
机构
[1] UNIV NOTRE DAME,DEPT CHEM & BIOCHEM,NOTRE DAME,IN 46556
关键词
D O I
10.1021/jo00095a040
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
The diastereoselectivities of chiral acyl nitroso dienophiles derived from optically pure N-protected alpha-amino hydroxamic acids have been determined in intermolecular hetero Diels-Alder reactions. The cycloaddition reactions afforded synthetically useful quantities of functionally rich, optically pure cycloadducts, useful for the preparation of a variety of compounds of potential biological interest. Molybdenum hexacarbonyl reduction of the cycloadducts gave optically pure allylic alcohols. Osmium tetraoxide-catalyzed dihydroxylation of several bis-allylically substituted intermediates gave only the diastereomerically pure diols corresponding to naturally occurring 2',3'-dihydroxynucleoside analogs.
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页码:4602 / 4611
页数:10
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