35. Diastereoselectivity Enhancement in Cyclopropanation and Cyclopropenation Reactions of Chiral Diazoacetate Esters Catalyzed by Chiral Dirhodium(II) Carboxamides

Authors: Michael P. Doyle* , Marina N. Protopopova, Bridget D. Brandes, Huw M. L. Davies, Nicholas J. S. Huby, James K. Whitesell

Syn. Lett., 

19932, 151-153

Continue reading “35. Diastereoselectivity Enhancement in Cyclopropanation and Cyclopropenation Reactions of Chiral Diazoacetate Esters Catalyzed by Chiral Dirhodium(II) Carboxamides”

30. Highly stereoselective [3 + 2] annulations by cyclopropanation of vinyl ethers with rhodium(II)-stabilized vinylcarbenoids followed by a formally forbidden 1,3-sigmatropic rearrangement

Authors: Huw M. L. Davies , Baihua Hu

J. Org. Chem.,

1992, 57 (11), 3186–3190

Continue reading “30. Highly stereoselective [3 + 2] annulations by cyclopropanation of vinyl ethers with rhodium(II)-stabilized vinylcarbenoids followed by a formally forbidden 1,3-sigmatropic rearrangement”