Selenophenols enones

Asymmetric induction of the Michael addition of thiols to electron-deficient alkenes (4.6.1) has been achieved in high overall conversion using both free [e.g. 12-20] and polymer-supported [e.g. 21, 22] cinchona alkaloids and their salts [23-25], but with varying degrees of optical purity. The corresponding asymmetric Michael addition of selenophenols to cyclohex-2-enones is promoted by cinchoni-dine to give a chiral product (43% ee) [26],... 

There seem to be very few examples of organocatalytic Michael additions of Se-nucleophiles, and these are limited to the addition of selenophenols to enones (Scheme 4.36) [3, 60]. As shown in the scheme, Wynberg and Pluim achieved... 

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See also in sourсe #XX -- [ ]

See also in sourсe #XX -- [ , ]

See also in sourсe #XX -- [ , ]

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