BEGIN:VCALENDAR PRODID:-//Microsoft Corporation//Outlook 16.0 MIMEDIR//EN VERSION:2.0 METHOD:PUBLISH X-MS-OLK-FORCEINSPECTOROPEN:TRUE BEGIN:VTIMEZONE TZID:GMT Standard Time BEGIN:STANDARD DTSTART:16011028T020000 RRULE:FREQ=YEARLY;BYDAY=-1SU;BYMONTH=10 TZOFFSETFROM:+0100 TZOFFSETTO:-0000 END:STANDARD BEGIN:DAYLIGHT DTSTART:16010325T010000 RRULE:FREQ=YEARLY;BYDAY=-1SU;BYMONTH=3 TZOFFSETFROM:-0000 TZOFFSETTO:+0100 END:DAYLIGHT END:VTIMEZONE BEGIN:VEVENT CATEGORIES:Stage 2 CLASS:PUBLIC CREATED:20250512T090046Z DESCRIPTION:Presentation:\nA breakthrough in safe and effective peroxide ox idations\n \nWednesday 16.30 to 16.50\, Stage 2\n \nSpeaker:\nProfessor Ja mes Clark - Chair and Director – Addible\n \nAbout this presentation\nHy drogen peroxide is attractive as a green oxidant: it is the most atom effi cient and contrasts with common oxidants such as chromates (toxic and wast eful)\, nitric acid\, and peracids (explosive and wasteful). Organic oxida tions are the most important chemical transformations and hydrogen peroxid e is used in countless processes including the manufacture of Pyrethroid i nsecticides and Pyroxasulfone herbicides. Hydrogen peroxide is used as an aqueous solution as the pure compound is dangerous to handle\, but many or ganic substrates are not water soluble and/or water compatible. Even when the substrate is not sensitive to water\, applications are normally biphas ic with a water-immiscible solvent (e.g. chlorinated solvent) being used t o dissolve the substrate and a phase transfer catalyst needed to facilitat e the biphasic reaction.\n \nThese multi-component reaction systems requir e complex separation and purification procedures resulting in a high-cost and high-waste process. There is a real and multi-application need for alt ernative effective sources of peroxide\, that are non-aqueous and anhydrou s\, simple to use\, greener\, and safer than the known alternatives. Herei n we report for the first time\, a novel green non-aqueous oxidant\, which is stable over long periods\, yet effective in many applications includin g various organic oxidations and material recycling. It incorporates a gre en\, non-toxic and easily recyclable organic solvent suitable for most org anic compounds.\n \nProfessor James Clark - Chemical UK Expo \n \n DTEND;TZID="GMT Standard Time":20250521T165000 DTSTAMP:20250512T090046Z DTSTART;TZID="GMT Standard Time":20250521T163000 LAST-MODIFIED:20250512T090046Z LOCATION:Stage 2 PRIORITY:5 SEQUENCE:0 SUMMARY;LANGUAGE=en-gb:Presentation: A breakthrough in safe and effective p eroxide oxidations TRANSP:OPAQUE UID:040000008200E00074C5B7101A82E00800000000D08BCBAEF4C0DB01000000000000000 010000000CEAE86821053DA418AC3C4057EB38BB5 X-ALT-DESC;FMTTYPE=text/html:

Presentation:

A breakthrough in safe and effective perox ide oxidations

 \;< /b>

Wednesday 16.30 t o 16.50\, Stage 2

 \;

Speaker:

Professor James Clark - Chair and Director –\; Addible

 \;

About this presentation

Hydrogen peroxide is att ractive as a green oxidant: it is the most atom efficient and contrasts wi th common oxidants such as chromates (toxic and wasteful)\, nitric acid\, and peracids (explosive and wasteful). Organic oxidations are the most imp ortant chemical transformations and hydrogen peroxide is used in countless processes including the manufacture of Pyrethroid insecticides and Pyroxasulfone herbicides. Hydrogen peroxide is used as an aqueous solution as the pure compound is dangerous to handle\, but man y organic substrates are not water soluble and/or water compatible. Even w hen the substrate is not sensitive to water\, applications are normally bi phasic with a water-immiscible solvent (e.g. chlorinated solvent) being us ed to dissolve the substrate and a phase transfer catalyst needed to facil itate the biphasic reaction.

 \;

These multi-component reaction systems requir e complex separation and purification procedures resulting in a high-cost and high-waste process. There is a real and multi-application need for alt ernative effective sources of peroxide\, that are non-aqueous and anhydrou s\, simple to use\, greener\, and safer than the known alternatives. Herei n we report for the first time\, a novel green non-aqueous oxidant\, which is stable over long periods\, yet effective in many applications includin g various organic oxidations and material recycling. It incorporates a gre en\, non-toxic and easily recyclable organic solv ent suitable for most organic compounds.

 \;

Professor James Clark - Chemical U K Expo

 \;

X-MICROSOFT-CDO-BUSYSTATUS:BUSY X-MICROSOFT-CDO-IMPORTANCE:1 X-MICROSOFT-DISALLOW-COUNTER:FALSE X-MS-OLK-AUTOFILLLOCATION:FALSE X-MS-OLK-CONFTYPE:0 BEGIN:VALARM TRIGGER:-PT15M ACTION:DISPLAY DESCRIPTION:Reminder END:VALARM END:VEVENT END:VCALENDAR