نتایج جستجو برای: epoxidation

تعداد نتایج: 1907  

Journal: :Chemical communications 2008
Jie Bi Varinder K Aggarwal

The total synthesis of 8a-epi-swainsonine has been achieved in 20% overall yield from R-glyceraldehyde dimethylacetonide 3 through epoxidation with the achiral furyl-substituted sulfonium ylide 2d as one of the key steps.

2014
B. Narasimha Reddy R. P. Singh

An efficient and novel synthesis of (R)-rugulactone has been achieved employing Sharpless asymmetric epoxidation of allyl alcohols followed by selective hydride reduction of epoxy alcohols and olefin cross metathesis reactions.

Journal: :Organic & biomolecular chemistry 2009
Omar Boutureira Joanna F McGouran Robert L Stafford Daniel P G Emmerson Benjamin G Davis

A systematically varied series of conformationally restricted ketones, readily prepared from N-acetyl-D-glucosamine, were tested against representative olefins as asymmetric epoxidation catalysts showing useful selectivities against terminal olefins and, in particular, typically difficult 2,2-disubstituted terminal olefins.

Journal: :Chemical communications 2011
Samiran Bhattacharjee Da-Ae Yang Wha-Seung Ahn

A manganese(II) acetylacetonate complex has been immobilized to the metal-organic framework IRMOF-3 through a one-step post-synthetic route for the first time, providing an effective and recyclable heterogeneous catalyst for epoxidation of alkenes.

Journal: :Journal of the American Chemical Society 2007

Journal: Nanochemistry Research 2017

In this study, a new recoverable catalyst for the epoxidation of olefins was developed using a layered polysiloxane as a support for immobilizing  (salen) molybdenum(VI) complex by electrostatic interaction between the surface of the solid support and the electrically charged molybdenum complex. Characterization of the heterogeneous catalyst by Fourier transform infrared, XRD,1H NMR,...

Journal: :Journal of materials chemistry. A, Materials for energy and sustainability 2022

The single-atom Co anchored on N-doped carbon supports with a multiscale porous structure has been successfully constructed for the epoxidation of cyclooctene 95% yield 1,2-epoxycycloheptane at 140 °C and 0.5 MPa O 2 .

Journal: :Bulletin of the Chemical Society of Japan 1967

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