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。
The Absolute Configuration of Pinocarvone Oxide
作者:Jun Katsuhara
DOI:10.1246/bcsj.41.2700
日期:1968.11
(−)-pinocarvone oxide derived from (+)-pinocarvone into (−)-(1R:2S:3R:5R)-cis-2-hydroxypinocampheol and the conversion of (+)-pinocarvone oxide in (+)-(1R:2R:3R:5R)-trans-2-hydroxyneoisopinocampheol and (−)-(1R:2R:3R:5R)-cis-2-hydroxyisopinocampheol are described. With the knowledge of the absoluteconfigurations of these glycols, it was concluded that (−)-pinocarvone oxide and (+)-pinocarvone oxide have the
Osmium tetroxide catalyzed hydroxylation of hindered olefins
作者:Rahul Ray、Donald S. Matteson
DOI:10.1016/s0040-4039(00)71429-8
日期:1980.1
Osmium tetroxide catalyzed hydroxylation of sterically hindered olefins proceeds efficiently with trimethylamine N-oxide as oxidizing agent in the presence of pyridine.