42 research outputs found
Synthetic Application of Intramolecular Cyanoboration on the Basis of Removal and Conversion of a Tethering Group by Palladium-Catalyzed Retro-Allylation
A new synthetic strategy, involving utilization of a tethered intramolecular reaction with a removable tether, was demonstrated by the intramolecular cyanoboration-retro-allylation sequence
Inter- and Intramolecular Additions of 1-Alkenylboronic Acids or Esters to Aldehydes and Ketones Catalyzed by Rhodium(I) Complexes in Basic, Aqueous Solutions
Grignard-type addition reaction of 1-alkenylboronic acids or their esters to aldehydes or ketones were carried out in aqueous MeOH or DME in the presence of KOH (1 equivalent) and an RhCl(dppf) or Rh(OH)(dppf) catalyst (3 mol%). The utility of the protocol was demonstrated in the corresponding intramolecular reaction giving cyclic homoallylic alcohols