Asymmetric Alkynylation of Aldehydes Cat
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Chun SHEN; Lei CHEN; Jie TANG; Minghua XU
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Article
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2009
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John Wiley and Sons
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English
β 89 KB
## Abstract The asymmetric alkynylation of aldehydes catalyzed by bifunctional Zn(salen) catalyst was realized. With a Kozlowski salen ligand (7e) bearing secondary basic 1βpiperidinylmethyl groups at Cβ3 and Cβ3β², the enhanced catalytic reactivity and stereoselectivity in comparison with that of n