Sustainable catalytic epoxidation of biorenewable terpene feedstocks using H<sub>2</sub>O<sub>2</sub> as an oxidant in flow microreactors
作者:Joshua D. Tibbetts、William B. Cunningham、Massimiliano Vezzoli、Pawel Plucinski、Steven D. Bull
DOI:10.1039/d1gc01734a
日期:——
Solvent-free continuous flow epoxidation of the alkene bonds of a range of biorenewable terpene substrates have been carried out using a recyclable tungsten-based polyoxometalate phase transfer catalyst and aqueous H2O2 as a benign oxidant. These sustainable flow epoxidation reactions are carried out in commercial microreactors containing static mixing channels that enable common monoterpenes (e.g
使用可回收的钨基多金属氧酸盐相转移催化剂和 H 2 O 2水溶液作为良性氧化剂,对一系列生物可再生萜烯底物的烯烃键进行了无溶剂连续流动环氧化。这些可持续流动环氧化反应在包含静态混合通道的商业微反应器中进行,这些通道使普通单萜(例如未处理的粗硫酸松节油、柠檬烯等)能够在较短的反应时间内以良好的产率安全地环氧化。这些流动程序适用于三取代和二取代烯烃的流动环氧化,以安全生产数克数量的各种环氧化物。
Stabilization and hydrogenation methods for microbial-derived olefins
申请人:AMYRIS, INC.
公开号:US10183901B2
公开(公告)日:2019-01-22
Methods and compositions for stabilization and subsequent hydrogenation of a microbial-derived immiscible olefin are described. The methods comprise separating immiscible olefin from a mixture comprising an aqueous solution, microbial cells and immiscible olefin thereby forming a crude olefin composition; purifying the crude olefin composition thereby forming a purified olefin composition; and adding a phenolic antioxidant to the purified olefin composition wherein the phenolic antioxidant is a phenol derivative containing an unfused phenyl ring with one or more hydroxyl substituents. The methods further comprise reacting the purified olefin composition with hydrogen in the presence of a hydrogen catalyst such that hydrogen saturates at least one double bond in the olefin. Hydrogenated compositions produced by the methods are further provided.
STABILIZATION AND HYDROGENATION METHODS FOR MICROBIAL-DERIVED OLEFINS
申请人:Amyris, Inc.
公开号:EP2414311B1
公开(公告)日:2017-06-07
Stabilization And Hydrogenation Methods For Microbial-Derived Olefins
申请人:Ohler Nicholas L.
公开号:US20100267971A1
公开(公告)日:2010-10-21
Processes and systems for stabilization and subsequent hydrogenation of an immiscible olefin are described. In certain embodiments, the hydrogenation is conducted in a fixed bed reactor in presence of a hydrogenation catalyst.
SELECTIVE PARTIAL HYDROGENATION OF TERPENES USING AN IRIDIUM-BASED CATALYST
申请人:CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (CNRS)
公开号:US20190152877A1
公开(公告)日:2019-05-23
A process for selective partial hydrogenation of conjugated diene compounds includes at least one, preferably terminal, diene function and at least one additional carbon-carbon double bond, the process including reacting the conjugated diene compounds with hydrogen in the presence of an iridium-NHC based catalyst. The disclosure also relates to a reaction mixture that can be obtained at the end of the process. The disclosure also relates to the use of the reaction mixture.