TY - JOUR
T1 - Synthesis and structural characterization of N-[4-(2-hydroxyethyl)-1,2,4- oxathiazinan-3-ylidene]-benzamide and its mercury(II) chloride adduct
AU - Angulo-Cornejo, Jorge R.
AU - Ayala-León, Ketty
AU - Herbosa, Gabriel García
AU - Cuevas, José V.
AU - Diez, Virginia
AU - Richter, Rainer
AU - Hennig, Lothar
AU - Beyer, Lothar
N1 - Copyright:
Copyright 2021 Elsevier B.V., All rights reserved.
PY - 2005/9
Y1 - 2005/9
N2 - The synthesis of N-[4-(2-hydroxyethyl)-1,2,4-oxathiazinan-3-ylidene]- benzamide (2a) and N-[4-(2-hydroxyethyl)-1,2,4-oxathiazinan-3-ylidene]-2- fluorobenzamide (2b) by oxidation of the corresponding 1,1-bis(2-hydroxyethyl)- 3-aroylthioureas with potassium iodate in aqueous solution is reported. Variable temperature 1H NMR spectra of 2a prove that the heterocyclic 1,2,4-(O, S,N) six-membered ring is involved in a dynamic chair-boat conformational interconversion. Molecular mechanic calculations show that the chair conformation is more stable than the boat conformation by 3.0 kcal/mol. The synthesis of the adduct [(2a)·0.5 HgCl2] 3 as well as the X-ray structural characterization of 2a and 3 are also reported.
AB - The synthesis of N-[4-(2-hydroxyethyl)-1,2,4-oxathiazinan-3-ylidene]- benzamide (2a) and N-[4-(2-hydroxyethyl)-1,2,4-oxathiazinan-3-ylidene]-2- fluorobenzamide (2b) by oxidation of the corresponding 1,1-bis(2-hydroxyethyl)- 3-aroylthioureas with potassium iodate in aqueous solution is reported. Variable temperature 1H NMR spectra of 2a prove that the heterocyclic 1,2,4-(O, S,N) six-membered ring is involved in a dynamic chair-boat conformational interconversion. Molecular mechanic calculations show that the chair conformation is more stable than the boat conformation by 3.0 kcal/mol. The synthesis of the adduct [(2a)·0.5 HgCl2] 3 as well as the X-ray structural characterization of 2a and 3 are also reported.
KW - Crystal Structure
KW - Mercury(II) Chloride Adduct
KW - NMR Data
KW - Oxathiazinanes
KW - Synthesis
UR - http://www.scopus.com/inward/record.url?scp=27544433116&partnerID=8YFLogxK
U2 - 10.1515/znb-2005-0906
DO - 10.1515/znb-2005-0906
M3 - Artículo
AN - SCOPUS:27544433116
SN - 0932-0776
VL - 60
SP - 945
EP - 950
JO - Zeitschrift fur Naturforschung - Section B Journal of Chemical Sciences
JF - Zeitschrift fur Naturforschung - Section B Journal of Chemical Sciences
IS - 9
ER -