142075-93-2Relevant academic research and scientific papers
Asymmetric synthesis of tertiary vinyl carbinols by highly stereoselective methylation of α-methyl-β-ketosulfoxides with aluminum reagents
García Ruano, José L.,Rodríguez-Fernández, M. Mercedes,Maestro, M.Carmen
, p. 5701 - 5710 (2007/10/03)
Methylation of chiral acyclic α-methyl-β-ketosulfoxides with Me3Al and Me2AlCl is reported. Induced configuration at hydroxylic carbon is mainly controlled by the configuration of the sulfinyl group, with de's higher than 90% in most of the cases regardless the configuration at C-α. The stereochemical pathway seems to be different with both reagents, thus affording a higher stereoselectivity with Me 2AlCl. Pyrolytic desulfinylation and hydrogenolysis of the C-S bond allowed the transformation of the resulting hydroxysulfoxides into interesting optically pure tertiary methyl carbinols.
Highly Diastereoselective Hydrocyanation of β-Keto Sulfoxides: Synthesis of Enantiomerically Pure Cyanohydrin Derivatives
Ruano, Jose L. Garcia,Castro, Ana M. Martin,Rodriguez, Jesus H.
, p. 7235 - 7241 (2007/10/02)
The reactions of chiral β-keto sulfoxides, R1-CO-CHR2-SOTol (R1 = Me, n-Pr, i-Pr, t-Bu, Ph; R2 = H, Me) with Et2AlCN yield the corresponding sulfinyl cyanohydrins with high yields (85-96percent) and de (>96perce
1,3-Asymmetric Induction in the Reduction of α-Alkyl β-Ketosulfoxides with DIBAL/ZnBr2
Barros, David,Carreno, M. Carmen,Ruano, Jose L. Garcia,Maestro, M. Carmen
, p. 2733 - 2736 (2007/10/02)
The highly stereoselective reduction of chiral α-alkyl β-ketosulfoxides with DIBAL/ZnBr2 is governed by the configuration at the sulfur (1,3-induction) and not by that of the C-α (1,2-induction) as it has been previously reported.This fact considerably in
