Results 211 to 220 of about 26,606 (255)

Cyclohexylcarbonitriles: Diastereoselective Arylations with TMPZnCl·LiCl

The Journal of Organic Chemistry, 2012
Deprotonating substituted cyclohexanecarbonitriles with TMPZnCl·LiCl affords zincated nitriles that diastereoselectively couple with aryl bromides in the presence of catalytic Pd(OAc)(2) and S-Phos. Steric and electronic effects influence the diastereoselectivity; 4-t-butyl-, 4-TBSO-, and 2-Me-cyclohexanecarbonitriles exert virtually complete ...
Robert J, Mycka, Stéphanie, Duez, Sebastian, Bernhardt, Johannes, Heppekausen, Paul, Knochel, Fraser F, Fleming   +5 more
openaire   +2 more sources

Diastereoselective Total Synthesis of (−)-Galiellalactone

The Journal of Organic Chemistry, 2015
An enantioselective total synthesis of (-)-galiellalactone has been accomplished. The key features of the synthesis involve the highly stereoselective construction of the cis-trisubstituted cyclopentane intermediate by a Pd(0)-catalyzed cyclization, the stereospecific introduction of an angular hydroxyl group by Riley oxidation, and the efficient ...
Taewoo, Kim, Young Taek, Han, Hongchan, An, Kyeojin, Kim, Jeeyeon, Lee, Young-Ger, Suh   +5 more
openaire   +2 more sources

Diastereoselective Preparation of Azetidines and Pyrrolidines

Organic Letters, 2010
Iodine-mediated cyclization of homoallyl amines at room temperature delivered cis-2,4-azetidine through a 4-exo trig cyclization. Isomerization of iodo-azetidines to cis-pyrrolidines could be achieved by heating, with complete stereocontrol. The relative stereochemistry of the iodo-azetidines and pyrrolidines was confirmed by NMR spectroscopy and X-ray
Antonio, Feula, Louise, Male, John S, Fossey   +2 more
openaire   +2 more sources

Diastereoselective Hydroboration of Isopropenylcyclopropanes

The Journal of Organic Chemistry, 1999
Janine, Cossy, Nicolas, Blanchard, Céline, Hamel, Christophe, Meyer   +3 more
openaire   +2 more sources

Diastereoselection through chiral conformations.

Enantiomer, 2000
Chiral conformations of flexible molecules may develop in a concerted manner if the molecule is crowded enough to assure sufficient level of through-the-space contacts. Higher number (> 4) of groups connected to the same atom, as in many coordination compounds, can be advantageous in this respect.
M. Szabo, R. Szilagyi, L. Bencze, R. Boese, C. Zucchi, CAGLIOTI, Luciano, G. Palyi   +6 more
openaire   +3 more sources

Diastereoselective Cyclopentane Construction

The Journal of Organic Chemistry, 2000
, Taber, , Wang, , Pahutski
openaire   +2 more sources

Cyclization by C(sp3)–H Arylation with a Transient Directing Group for the Diastereoselective Preparation of Indanes

ACS Catalysis, 2021
Philip Provencher, Kendall Houk, John Hoskin   +2 more
exaly  

Diastereoselective Nucleophilic Trifluoromethylation

2011
V. Gouverneur, O. Lozano
openaire   +1 more source

Aryne 1,4‐Disubstitution and Remote Diastereoselective 1,2,4‐Trisubstitution via a Nucleophilic Annulation‐[5,5]‐Sigmatropic Rearrangement Process

Angewandte Chemie - International Edition, 2022
Yang Li
exaly  

Diastereoselective spiroannelation

Tetrahedron Letters, 1987
Perséphone Canonne, Raynald Boulanger, Michel Bernatchez   +2 more
openaire   +1 more source