Abstract
The desymmetrisation of prochiral alpha,alpha-dicyanoalkenes via tandem Michael-Michael addition reactions with alpha,beta-unsaturated ketones catalysed by 9-amino-9-deoxyepicinchona alkaloids was investigated, from which bicyclic products bearing four stereogenic centers were afforded in a single operation with high stereoselectivities (>99% de, up to >99.5% ee).
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