Ethinyl(phenyl)iodonium‐triflat, [HCCIPh]‐[OSO2CF3] – Darstellung, spektroskopische Eigenschaften, Bildungsmechanismus und Röntgenstrukturanalyse
- 1 March 1990
- journal article
- zuschrift
- Published by Wiley in Angewandte Chemie
- Vol. 102 (3) , 307-308
- https://doi.org/10.1002/ange.19901020317
Abstract
Eine der kürzesten CC‐Bindungen charakterisiert die Titelverbindung 1, die eine extrem starke CH‐Säure sein sollte. Bei der Synthese von 1 nutzte man den jüngst gefundenen hohen Stabilisierungseffekt von β‐Stannylresten für Carbenium‐Ionen (R3Sn‐C‐C⊕). Durch Addition des „Zefirov‐Reagens”︁ PhIO/(CF3SO2)2O an Tri‐n‐butylstannylacetylen entsteht primär ein energiereiches Vinylkation, das zum Iodonium‐Salz 1 und (nBu3Sn)2O zerfällt. magnified imageKeywords
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