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Concerning the Questionable Existence of Thioxoindigoid Compounds
Author(s) -
Schroth Werner,
Hintzsche Ekkehard,
Felicetti Michael,
Spitzner Roland,
Sieler Joachim,
Kempe Rhett
Publication year - 1994
Publication title -
angewandte chemie international edition in english
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 0570-0833
DOI - 10.1002/anie.199407391
Subject(s) - heteroatom , valence (chemistry) , solid state , chemistry , combinatorial chemistry , stereochemistry , computational chemistry , medicinal chemistry , organic chemistry , ring (chemistry)
Neither in the solid state, nor in solution —proof of the existence of indigoid compounds such as 1 with thioxo instead of oxo groups remains elusive. The oxidation of leucoindigoid precursors does not lead to 1 in any example examined, but rather to the valence isomeric 1,2‐dithiines 2 or to macrocyclic bisdisulfides, depending on the heteroatom X (S, NCH 3 , NH, O).