ASYMMETRICAL CATALYSIS .70. HIGHLY ENANTIOSELECTIVE COBALT-CATALYZED HOMO DIELS-ALDER REACTION OF NORBORNADIENE WITH ACETYLENES

被引：37

作者：

BRUNNER, H

PRESTER, F

机构：

来源：

JOURNAL OF ORGANOMETALLIC CHEMISTRY | 1991年 / 414卷 / 03期

关键词：

D O I：

10.1016/0022-328X(91)86338-Q

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The enantioselective homo Diels-Alder reaction of norbornadiene with monosubstituted acetylenes affords optically active deltacyclenes. The catalyst is a cobalt complex, which is prepared in situ from Co(acac)3, Et2AlCl, and optically active phosphines. With catalysts containing Norphos, a quantitative yield can be achieved for 4-phenyl- and 4-n-butyldeltacyclene with an enantiomeric excess of more than 98%. For some catalysts the solvent has a decisive influence on the chemical and optical yield.

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页码：401 / 409

页数：9

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