title: Pnictogen-directed synthesis of discrete disulfide macrocycles.
abstract: Cyclic disulfide macrocycles were rapidly synthesized cleanly and selectively from rigid dithiols via oxidation with iodine when activated by pnictogen additives (As and Sb). Macrocycles were confirmed by (1)H-NMR spectroscopy and X-ray crystallography. A p-xylyl-based disulfide trimer and tetramer crystallized in hollow, stacked columns stabilized by intermolecular, sulfur···sulfur close contacts.
authors.affiliation: University of Oregon and Materials Science Institute, Eugene, Oregon 97403-1253, USA.
authors.forename: Mary S
authors.initials: MS
authors.lastname: Collins
authors.forename: Matthew E
authors.initials: ME
authors.lastname: Carnes
authors.forename: Aaron C
authors.initials: AC
authors.lastname: Sather
authors.forename: Orion B
authors.initials: OB
authors.lastname: Berryman
authors.forename: Lev N
authors.initials: LN
authors.lastname: Zakharov
authors.forename: Simon J
authors.initials: SJ
authors.lastname: Teat
authors.forename: Darren W
authors.initials: DW
authors.lastname: Johnson
mesh_terms: D000965:Antimony / Q000737:chemistry*; D001151:Arsenic / Q000737:chemistry*; D018360:Crystallography, X-Ray; D004220:Disulfides / Q000138:chemical synthesis* / Q000737:chemistry; D047028:Macrocyclic Compounds / Q000138:chemical synthesis* / Q000737:chemistry; D008958:Models, Molecular; D015394:Molecular Structure
chemical_list: D004220:Disulfides; D047028:Macrocyclic Compounds; D000965:Antimony; D001151:Arsenic