2004
DOI: 10.1002/ange.200352674
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Elektroorganische Synthese an der festen Phase mit Polymerkügelchen als Trägermaterial

Abstract: Professor Manfred T. Reetz zum 60. Geburtstag gewidmet Die organische Festphasensynthese (SPOS) hat sich zu einem wichtigen Werkzeug bei der Synthese großer Substanzbibliotheken entwickelt. Seit den bahnbrechenden Arbeiten von Merrifield ist es gelungen, fast alle in Lösung bekannten Reaktionen auf die feste Phase zu übertragen.[1] Eine Ausnahme sind die in der organischen Synthese wichtigen elektroorganischen Synthesen, die sogar im industriellen Maßstab durchgeführt werden.[2] Obwohl erst kürzlich über die P… Show more

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Cited by 20 publications
(5 citation statements)
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“…[39] It is based on the prin-ciple of "indirect electrolysis", [40] which has already found widespread application in solution-phase electroorganic synthesis, where it offers significant experimental advantages over a direct electrode contact, such as reduced overpotential or higher selectivity. Here, the electron-transfer step at the electrode and the redox reaction with the substrate are separated and a redox catalyst (29 and 30) serves as a mediator (Scheme 8).…”
Section: Solid Supported Bases As Supporting Electrolytesmentioning
confidence: 99%
“…[39] It is based on the prin-ciple of "indirect electrolysis", [40] which has already found widespread application in solution-phase electroorganic synthesis, where it offers significant experimental advantages over a direct electrode contact, such as reduced overpotential or higher selectivity. Here, the electron-transfer step at the electrode and the redox reaction with the substrate are separated and a redox catalyst (29 and 30) serves as a mediator (Scheme 8).…”
Section: Solid Supported Bases As Supporting Electrolytesmentioning
confidence: 99%
“…[6,7] Whilst it is stable against most acidic, basic, and oxidative reaction conditions and also common reducing agents, it can be cleaved under electron-transfer conditions, such as Na/NH 3 , [8] radical anions, [9] SmI 2 , [10] or electrolysis, [11] in a mild fashion. Our interest in the implementation of electron-transfer conditions in SPOS [12] has motivated us to take advantage of these opportunities to establish a reductively cleavable linker system. [13] Starting from inexpensive polystyrene sulfonyl chloride (1; loading 1.5 mmol g À1 , 1 % DVB, 100-200 mesh), olefinic secondary amines 2 were immobilized on the solid support.…”
Section: In Memory Of Peter Welzelmentioning
confidence: 99%
“…[7] Therefore, it can be expected that solid-supported bases should act as bases in bulk solutions and at the same time be electrochemically inactive reagents at an electrode surface. In the presence of solidsupported bases such as amines, protic organic solvents such as acetic acid should dissociate into anions and protons to some extent [Eqs.…”
mentioning
confidence: 99%