Implications for the existence of a heptasulfur linkage in natural o-benzopolysulfanes.
Natural o-benzopolysulfanes are often thought to exist as either the trisulfane or pentasulfane; the nomenclature has evolved around such notions. No study makes reference to the possible existence of natural o-benzoheptasulfanes. The work performed here indicates that a facile equilibration takes place between the tri-, penta-, and heptasulfanes (o-C(6)H(4)S(3), o-C(6)H(4)S(5), and o-C(6)H(4)S(7)) in solution. In these simpler (unnatural) compounds, the number of sulfur atoms can be established unequivocally from their independent syntheses. The o-benzopolysulfanes, even after purification, yield mixtures of compounds in solution. A similar equilibration may be anticipated for the corresponding natural products.
Aebisher
David
D
Department of Chemistry, Graduate Center and The City University of New York (CUNY), Brooklyn College, Brooklyn, New York 11210, USA.
Brzostowska
Edyta M
EM
Sawwan
Nahed
N
Ovalle
Rafael
R
Greer
Alexander
A
D001555:Benzene Derivatives / Q000138:chemical synthesis / Q000737:chemistry*; D001688:Biological Products / Q000138:chemical synthesis / Q000737:chemistry*; D015394:Molecular Structure; D011108:Polymers / Q000138:chemical synthesis / Q000737:chemistry*; D013457:Sulfur Compounds / Q000138:chemical synthesis / Q000737:chemistry*
D001555:Benzene Derivatives; D001688:Biological Products; D011108:Polymers; D013457:Sulfur Compounds