291314-82-4Relevant articles and documents
Continuous-Flow Dynamic Kinetic Resolution of Racemic Alcohols by Lipase–Oxovanadium Cocatalysis
Adebar, Niklas,Akai, Shuji,Gr?ger, Harald,Higashio, Koichi,Kühn, Franziska,Katsuragi, Satoko,Kundu, Dhiman,Plass, Carmen
, p. 1961 - 1967 (2020/04/09)
A continuous-flow dynamic kinetic resolution of racemic secondary alcohols was carried out using a single column reactor packed with a mixture of immobilized lipase and an immobilized oxovanadium species, VMPS4. As a result, optically pure esters were produced in 88–92 % yields. Problems encountered in this study were overcome by using fillers that efficiently maintained the initial distribution of the catalysts in the reactor and by using a packing method in which the mixing ratio of the two catalysts was varied in a stepwise fashion. The flow process led to an increased turnover number of each catalyst compared to those of batch reactions.
Enantioselective synthesis of cis-7-methoxy-calamenene via Claisen rearrangement of an enzymatically resolved allyl alcohol
Brenna, Elisabetta,Dei Negri, Claudia,Fuganti, Claudio,Gatti, Francesco G.,Serra, Stefano
, p. 335 - 340 (2007/10/03)
An enantioselective synthesis of cis-7-methoxy-calamenene 1 has been accomplished through the following key-steps: (i) enzymatic resolution of the racemic allyl alcohol 3 to furnish the (R)-enantiomer (ee>99%); (ii) Claisen-orthoester rearrangement of 4 t
Dynamic kinetic resolution of allylic alcohols mediated by ruthenium- and lipase-based catalysts.
Lee,Huh,Kim,Jung,Koh,Park
, p. 2377 - 2379 (2007/10/03)
An enzyme-metal combo reaction has been developed for the dynamic kinetic resolution of allylic alcohols in which racemic substrates are transformed by a lipase and a ruthenium complex in the presence of an acyl donor to allylic acetates of high optical purity in over 80% yield.