Selective epoxidation of monoterpenes with methyltrioxorhenium and H2O2
作者:Aída L.P. de Villa、Dirk E. De Vos、Consuelo C. de Montes、Pierre A. Jacobs
DOI:10.1016/s0040-4039(98)01853-x
日期:1998.11
terpenes such as α-pinene with H2O2 with minimal rearrangement of the epoxide. Pyridine is also critical to suppress isomerisation of the olefin substrate (in case of nerol, geraniol). The reaction can be directed towards selective single or double epoxidation, or in one step towards the rearranged product (e.g. from linalool to the ring-closure product linalool oxide).
在吡啶作为助催化剂的存在下,CH 3 ReO 3以最小的环氧基重排催化H 2 O 2对萜烯(如α-pine烯)的环氧化。吡啶对于抑制烯烃底物的异构化也是至关重要的(如果是神经醇,香叶醇)。该反应可以针对选择性的单或双环氧化,或在一步中针对重排的产物(例如从芳樟醇到闭环产物芳樟醇氧化物)。
Organic Synthesis in Pheromone Science
作者:Kenji Mori
DOI:10.3390/10091023
日期:——
Examples are given to illustrate the use of chemical and/or enzymatic asymmetric reactions in the synthesis of the new pheromones of the broad-horned flour beetle, flea beetle, currant stem girdler and Colorado potato beetle. The relationships between stereochemistry and bioactivity among pheromones are summarized to emphasize biodiversity as revealed in pheromone perception.
The selectivities and the mechanism on highly efficient epoxidation of olefins with 2,6-disubstituted pyridine N-oxides catalyzed by ruthenium porphyrin
作者:Hiro Ohtake、Tsunehiko Higuchi、Masaaki Hirobe
DOI:10.1016/s0040-4039(00)92231-7
日期:1992.4
Several remarkable selectivities in competitive epoxidations using a ruthenium porphyrin/ 2,6-disubstittuted pyridine N-oxide system were observed. The proposl that the active intermediate of this system differed from the trans-dioxo complex of ruthenium porphyrin was indicated.
Enzyme-assisted synthesis of (S)-1,3-dihydroxy-3,7-dimethyl-6-octen-2-one, the male-produced aggregation pheromone of the Colorado potato beetle, and its (R)-enantiomer
作者:Takuya Tashiro、Kenji Mori
DOI:10.1016/j.tetasy.2005.03.030
日期:2005.5
(S)-1,3-Dihydroxy-3,7-dimethyl-6-octen-2-one, the male-produced aggregation pheromone of the Colorado potato beetle (Leptinotarsa decemlineata), and its (R)-isomer were synthesized by employing lipase-catalyzed asymmetric acetylation of (+/-)-2,3-epoxynerol as the key step. (C) 2005 Elsevier Ltd. All rights reserved.