Chemo-enzymatic synthesis of key intermediates (S)-γ-hydroxymethyl-α,β-butenolide and (S)-γ-hydroxymethyl-γ-butyrolactone via lipase-mediated Baeyer–Villiger oxidation of levoglucosenone
作者:A. L. Flourat、A. A. M. Peru、A. R. S. Teixeira、F. Brunissen、F. Allais
DOI:10.1039/c4gc01231c
日期:——
Baeyer–Villiger oxidation of levoglucosenone with CAL-B and solid buffers provided valuable lactones in high yields in only 2 hours while allowing enzyme recyclability.
Organic solvent- and catalyst-free Baeyer–Villiger oxidation of levoglucosenone and dihydrolevoglucosenone (Cyrene®): a sustainable route to (<i>S</i>)-γ-hydroxymethyl-α,β-butenolide and (<i>S</i>)-γ-hydroxymethyl-γ-butyrolactone
作者:Guillaume Bonneau、Aurélien A. M. Peru、Amandine L. Flourat、Florent Allais
DOI:10.1039/c8gc00553b
日期:——
A straightforward and sustainable route to (S)-γ-hydroxymethyl-α,β-butenolide (HBO) and (S)-γ-hydroxymethyl-α,β-butyrolactone (2H-HBO), two valuable chemical platforms for the synthesis of fine chemicals such as drugs, pheromones, flavors and fragrances, has been optimized using renewable cellulose-based levoglucosenone (LGO) and Cyrene® as starting materials and aqueous H2O2 as both a solvent and
通往(S)-γ-羟甲基-α,β-丁烯内酯(HBO)和(S)-γ-羟甲基-α,β-丁内酯(2H-HBO)的直接,可持续的途径精细化学品(例如药物,信息素,香料和香精)已使用可再生的纤维素基左旋葡萄糖醛酮(LGO)和Cyrene®作为起始原料,并使用H 2 O 2水溶液作为溶剂和氧化剂进行了优化。与短程蒸馏相结合,此程序可提供对映纯HBO和2H-HBO,千千克级的收率高达72%。
A Method for Easy Preparation of Optically Pure (S)-5-Hydroxy-2-penten-4-olide and (S)-5-Hydroxypentan-4-olide
METHOD FOR TRANSFORMING LEVOGLUCOSENONE INTO 4-HYDROXYMETHYN BUTYROLACTONE OR 4-HYDROXYMETHYL BUTENOLIDE
申请人:INSTITUT NATIONAL DE LA RECHERCHE AGRONOMIQUE
公开号:US20170152536A1
公开(公告)日:2017-06-01
The disclosure relates to a method for transforming levoglucosenone into 4-hydroxymethyl butyrolactone or 4-hydroxymethyl butenolide, comprising a step involving the oxidation of the levoglucosenone, or dihydrolevoglucosenone obtained by hydrogenation of levoglucosenone, by bringing a solution of levoglucosenone or dihydrolevoglucosenone in a solvent into contact with a lipase in the presence of an oxidizing agent and an acyl donor compound. The oxidation step is followed by a step involving the hydrolysis of the reaction mixture obtained and, if necessary, a step involving the hydrogenation of the compound obtained at the end of the hydrolysis step.
[EN] METHOD FOR TRANSFORMING LEVOGLUCOSENONE INTO 4-HYDROXYMETHYL BUTYROLACTONE OR 4-HYDROXYMETHYL BUTENOLIDE<br/>[FR] PROCÉDÉ DE TRANSFORMATION DE LÉVOGLUCOSÉNONE EN 4-HYDROXYMÉTHYLBUTYROLACTONE OU 4-HYDROXYMÉTHYLBUTÉNOLIDE
申请人:AGRONOMIQUE INST NAT RECH
公开号:WO2015165957A1
公开(公告)日:2015-11-05
L'invention concerne un procédé de transformation de la lévoglucosénone en 4-hydroxyméthylbutyrolactone ou en 4- hydroxyméthylbuténolide, comprenant une étape d'oxydation de la lévoglucosénone, ou de dihydrolévoglucosénone obtenue par hydrogénation de lévoglucosénone, par mise en contact d'une solution de lévoglucosénone ou de dihydrolévoglucosénone dans un solvant, avec une lipase en présence d'un agent oxydant et d'un composé donneur d'acyle. Cette étape d'oxydation est suivie d'une étape d'hydrolyse du mélange réactionnel obtenu, ainsi que, le cas échéant, d'une étape d'hydrogénation du composé obtenu à l'issue de cette étape d'hydrolyse.