Tag: Cyclopropanation

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44. Asymmetric synthesis of 1,4-cycloheptadienes and bicyclo[3.2.1]octa-2,6-dienes by rhodium(II) N-(p-(tert-butyl)phenylsulfonyl)prolinate catalyzed reactions between vinyldiazomethanes and dienes

Authors: Huw M.L. Davies, Zhi-Qiang Peng, Jeffrey H. Houser

Tetrahedron Lett., 

1994, 48, 8939-8942

1-s2.0-0040403994883947-gr1

Continue reading “44. Asymmetric synthesis of 1,4-cycloheptadienes and bicyclo[3.2.1]octa-2,6-dienes by rhodium(II) N-(p-(tert-butyl)phenylsulfonyl)prolinate catalyzed reactions between vinyldiazomethanes and dienes”

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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., 

1993, 2, 151-153

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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”