14366-89-3Relevant articles and documents
The Chemistry of Enoxysilacyclobutanes: Highly Selective, Uncatalyzed Aldol Additions
Denmark, Scott E.,Griedel, Brian D.,Coe, Diane M.
, p. 988 - 990 (1993)
O-(Silacyclobutyl)ketene acetals derived from esters, thiol esters, and amides reacted with a variety of aldehydes at room temperature without the need for catalysts.The O,O-ketene acetal of E-configuration reacted rapidly to afford the syn aldol products with high diastereoselectivity (93/7 - 99/1).
CHIRAL INDUCTION IN THE CYCLOCONDENSATION OF ALDEHYDES WITH SILOXYDIENES
Bednarski, M.,Maring, C.,Danishefsky, S.
, p. 3451 - 3454 (1983)
Eu(hfc)3 catalyzes the title reaction with substantial asymmetric induction.
Fe-Catalyzed Anaerobic Mukaiyama-Type Hydration of Alkenes using Nitroarenes
Bhunia, Anup,Bergander, Klaus,Daniliuc, Constantin Gabriel,Studer, Armido
supporting information, p. 8313 - 8320 (2021/03/08)
Hydration of alkenes using first row transition metals (Fe, Co, Mn) under oxygen atmosphere (Mukaiyama-type hydration) is highly practical for alkene functionalization in complex synthesis. Different hydration protocols have been developed, however, control of the stereoselectivity remains a challenge. Herein, highly diastereoselective Fe-catalyzed anaerobic Markovnikov-selective hydration of alkenes using nitroarenes as oxygenation reagents is reported. The nitro moiety is not well explored in radical chemistry and nitroarenes are known to suppress free radical processes. Our findings show the potential of cheap nitroarenes as oxygen donors in radical transformations. Secondary and tertiary alcohols were prepared with excellent Markovnikov-selectivity. The method features large functional group tolerance and is also applicable for late-stage chemical functionalization. The anaerobic protocol outperforms existing hydration methodology in terms of reaction efficiency and selectivity.
Asymmetric reductive aldol-type reaction with carbonyl compounds using dialkyl tartrate as a chiral ligand
Isoda, Motoyuki,Sato, Kazuyuki,Tokura, Yoriko,Tarui, Atsushi,Omote, Masaaki,Ando, Akira
, p. 956 - 961 (2014/12/11)
An asymmetric reductive aldol-type reaction of α,β-unsaturated esters with carbonyl compounds using Rh catalyst and Et2Zn was investigated. A chiral zinc complex from α,β-unsaturated ester was easily generated as the key intermediate from Et2Zn and Wilkin