Ruthenium(II)-Catalyzed [2+2] Cycloaddit
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Robert W. Jordan; Paul Le Marquand; William Tam
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Article
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2008
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John Wiley and Sons
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English
β 188 KB
## Abstract The ruthenium(II)βcatalyzed [2+2] cycloadditions of __anti__ 7βsubstituted norbornenes with an alkyne were investigated. The cycloadditions were found to proceed with a high degree of stereoselectivity, giving only the __exo__ stereoisomers in moderate to good yields using an improved p