Search results for "enolate"
showing 10 items of 52 documents
CCDC 232959: Experimental Crystal Structure Determination
2005
Related Article: F.Thetiot, S.Triki, J.S.Pala, J.-R.Galan-Mascaros, J.M.Martinez-Agudo, K.R.Dunbar|2004|Eur.J.Inorg.Chem.||3783|doi:10.1002/ejic.200400203
CCDC 2060890: Experimental Crystal Structure Determination
2021
Related Article: Lucija Ptiček, Lucija Hok, Petra Grbčić, Filip Topić, Mario Cetina, Kari Rissanen, Sandra Kraljević Pavelić, Robert Vianello, Livio Racané|2021|Org.Biomol.Chem.|19|2784|doi:10.1039/D1OB00235J
CCDC 855780: Experimental Crystal Structure Determination
2012
Related Article: K.Salorinne, E.Nauha, M.Nissinen|2012|Chem.Asian J.|7|809|doi:10.1002/asia.201100969
CCDC 232956: Experimental Crystal Structure Determination
2005
Related Article: F.Thetiot, S.Triki, J.S.Pala, J.-R.Galan-Mascaros, J.M.Martinez-Agudo, K.R.Dunbar|2004|Eur.J.Inorg.Chem.||3783|doi:10.1002/ejic.200400203
CCDC 2060885: Experimental Crystal Structure Determination
2021
Related Article: Lucija Ptiček, Lucija Hok, Petra Grbčić, Filip Topić, Mario Cetina, Kari Rissanen, Sandra Kraljević Pavelić, Robert Vianello, Livio Racané|2021|Org.Biomol.Chem.|19|2784|doi:10.1039/D1OB00235J
CCDC 2060886: Experimental Crystal Structure Determination
2021
Related Article: Lucija Ptiček, Lucija Hok, Petra Grbčić, Filip Topić, Mario Cetina, Kari Rissanen, Sandra Kraljević Pavelić, Robert Vianello, Livio Racané|2021|Org.Biomol.Chem.|19|2784|doi:10.1039/D1OB00235J
CCDC 232957: Experimental Crystal Structure Determination
2005
Related Article: F.Thetiot, S.Triki, J.S.Pala, J.-R.Galan-Mascaros, J.M.Martinez-Agudo, K.R.Dunbar|2004|Eur.J.Inorg.Chem.||3783|doi:10.1002/ejic.200400203
Conformationally Locked Pyramidality Explains the Diastereoselectivity in the Methylation of trans-Fused Butyrolactones
2020
A stereoselectivity model inspired by the total synthesis of stemona alkaloids is developed to explain why enolate-derived 3,4-fused butyrolactones are methylated with a preference for syn alkylation. The model shows how conformational locking present in nonplanar enolate structures favors syn over anti methylation, due to less significant structural distortions in the syn pathway. The developed model was also successfully used to rationalize selectivities of previously documented methylation reactions. peerReviewed
Steric vs. electronic stereocontrol in syndio- or iso-selective ROP of functional chiral β-lactones mediated by achiral yttrium-bisphenolate complexes
2018
International audience; Origins of stereoselectivity in ROP of racemic chiral cyclic esters promoted by achiral yttrium complexes, resulting in the formation of highly heterotactic polylactide, and highly syndiotactic or, more uniquely, highly isotactic poly(3-hydroxybutyrate)s, are discussed. A close interplay between the nature of the cyclic ester, most particularly of the exocyclic functional chain installed on the chiral center of β-lactones, and the ortho-substituents installed on the phenolate rings of the ligand, results in various determining secondary interactions of steric and also electronic nature.