Oxabicyclo[3.2.1]octenes in organic synthesis: Direct ring opening of oxabicyclo[3.2.1] ring systems with diisobutylaluminum hydride and a silyl ketene acetal-synthesis of the chiral C(19)-C(26) and C(27)-C(32) fragments of scytophycin C

被引:20
作者
Hunt, KW [1 ]
Grieco, PA [1 ]
机构
[1] Montana State Univ, Dept Chem & Biochem, Bozeman, MT 59717 USA
关键词
D O I
10.1021/ol010253c
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
GRAPHICS An efficient strategy for transforming meso-oxabicyclo[3.2.1]octenone 1 into optically active intermediates for macrolide synthesis has been developed. The direct bridgehead opening of optically active oxabicyclo[3.2.1]octene derivative 2 with hydride or a silyl ketene acetal utilizing the highly polar medium lithium perchlorate in diethyl ether resulted in highly functionalized cycloheptenones, which were transformed into the C(19)-C(26) and C(27)-C(32) fragments of Scytophycin C.
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页码:245 / 248
页数:4
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