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Cover Feature: Attempts to Synthesize a Thiirane, Selenirane, and Thiirene by Dealkylation of Chalcogeniranium and Thiirenium Salts (Chem. Eur. J. 2/2021)
Author(s) -
Poleschner Helmut,
Seppelt Konrad
Publication year - 2021
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.202004195
Subject(s) - thiirane , fluoride , chemistry , ion , ring (chemistry) , alkylation , reactivity (psychology) , cover (algebra) , medicinal chemistry , bridge (graph theory) , polymer chemistry , inorganic chemistry , organic chemistry , engineering , catalysis , medicine , mechanical engineering , alternative medicine , pathology
The Apollonian spirit of art and knowledge flows over the ancient house on Delos. However, even these forces cannot bridge the difference in reactivity: Thiiranium ions [Ad 2 SCH 2 CH 2 SiMe 3 ] + are fragmented by the fluoride ion to form thiirane Ad 2 S, Me 3 SiF, and C 2 H 4 through attack on Si. In the case of seleniranium ions [Ad 2 SeCH 2 CH 2 SiMe 3 ] + , the attack of the fluoride ion takes place on the Se and the three‐membered ring is cleaved. Reaction products are the alkene Ad=Ad and the unstable selenenyl fluoride Me 3 SiCH 2 CH 2 SeF, but no selenirane Ad 2 Se are formed. We thank Harald Hirsch, Potsdam, for his help with the picture design. More information can be found in the Full Paper by H. Poleschner and K. Seppelt on page 649.