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Structure and bonding in 9‐hydroxy‐1,4‐dimethylthioxanthenium bis(carbomethoxy)methylide and related ylides
Author(s) -
Abbady M. A.,
Askari S.,
Morgan M.,
Ternay A. L.,
Galloy J.,
Watson W. H.
Publication year - 1982
Publication title -
journal of heterocyclic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.321
H-Index - 59
eISSN - 1943-5193
pISSN - 0022-152X
DOI - 10.1002/jhet.5570190644
Subject(s) - chemistry , intramolecular force , hydrogen bond , crystal structure , medicinal chemistry , carbon atom , crystallography , stereochemistry , ring (chemistry) , organic chemistry , molecule
The single‐crystal X‐ray structures of 9‐hydroxy‐1,4‐dimethylthioxanthenium bis(carbomethoxy)methylide and 1,4‐oxathianium bis(carbomethoxy)methylide are reported. The methylide carbon of the former is pseudo‐axial while that of the latter is equatorial. The former exhibits a strong intramolecular hydrogen bond to a carbonyl oxygen atom.