5798-81-2Relevant academic research and scientific papers
Preparation of the four stereoisomers of 3-bromo-2-butanol or their acetates via lipase-catalysed resolutions of the racemates derived from dl- or meso-2,3-butanediol
Liu, Rong,Berglund, Per,Hoegberg, Hans-Erik
, p. 2607 - 2611 (2007/10/03)
The four stereoisomeric 3-bromo-2-butanols and/or their acetates were prepared via lipase-catalysed kinetic resolution by hydrolyses of the acetates of the (±)-syn- and (±)-anti-3-bromo-2-butanols, or via esterifications of the alcohols. The diastereomeric bromoacetates were obtained by syntheses from the dl- and meso-2,3-butanediols, respectively. On a preparative scale, the four stereoisomers, either as the free alcohols or as their acetates, were obtained in >95% ee, and in 35-40% yield (based on the starting racemates).
Reactions of 1,3-Dioxacyclanes with Acid Halides. A New Synthesis for ω-Halohydrine Esters
Kwiatkowski, Stefan,Wolinski, Andrzej
, p. 869 - 872 (2007/10/02)
Reaction of 1,3-dioxolanes and 1,3-dioxanes with aliphatic acid chlorides and bromides yields 2- or 3-halohydrine esters. - Keywords: 1,3-Dioxolanes and 1,3-dioxanes, ring opening of
