The conjugate base of pentacarbonyl(propenylpyrrolidinocarbene)chromium(0) I and II (e.g., R = H, D, Me, Et) is easily generated at -78° with LDA and reacts with electrophilic reagents RX to provide the corresponding addn. products and II in satisfactory to good yields. The a/g regioselectivity depends on the nature of the electrophile and is also discussed in comparison with the behavior of the anions of crotonamides.
Reaction of the conjugate base of propenylpyrrolidonocarbene chromium pentacarbonyl complex with electrophiles
Baldoli Clara;
1994
Abstract
The conjugate base of pentacarbonyl(propenylpyrrolidinocarbene)chromium(0) I and II (e.g., R = H, D, Me, Et) is easily generated at -78° with LDA and reacts with electrophilic reagents RX to provide the corresponding addn. products and II in satisfactory to good yields. The a/g regioselectivity depends on the nature of the electrophile and is also discussed in comparison with the behavior of the anions of crotonamides.File in questo prodotto:
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