title: Lewis-base stabilized diiodine adducts with N-heterocyclic chalcogenamides.
abstract: Oxidation reactions of stable chalcogenamides with iodine are intriguing due to their broad application in various organic syntheses. In the present study we report on the utilization of N-heterocyclic carbene and cyclic-alkyl-amino carbenes L(1-3): (L(1): = :C[N(2,6-iPr2-C6H3)CH]2, L(2): = :C(CH2)(CMe2)(C6H10)N-2,6-iPr2-C6H3, L(3): = :C(CH2)(CMe2)2N-2,6-iPr2-C6H3) for the syntheses of chalcogenamides L(1-3)=E (E = S, Se, Te) 1-4 and zwitterionic adducts L(1-3)=E-I-I 5-8. The synthesis of compounds 1-4 involved the addition reaction of ligand L(1-3): and elemental chalcogen. Treatment of 1-4 with iodine resulted in the formation of adducts 5-8. Compounds 5-8 are well characterized with various spectroscopic methods and single-crystal X-ray structural analysis.
authors.affiliation: Institut für Anorganische Chemie, Georg-August-Universität, Tammannstraβe 4, 37077-Göttingen, Germany. hroesky@gwdg.de dstalke@gwdg.de.
authors.forename: Mykyta
authors.initials: M
authors.lastname: Tretiakov
authors.forename: Yuriy G
authors.initials: YG
authors.lastname: Shermolovich
authors.forename: Amit Pratap
authors.initials: AP
authors.lastname: Singh
authors.forename: Prinson P
authors.initials: PP
authors.lastname: Samuel
authors.forename: Herbert W
authors.initials: HW
authors.lastname: Roesky
authors.forename: Benedikt
authors.initials: B
authors.lastname: Niepötter
authors.forename: Arne
authors.initials: A
authors.lastname: Visscher
authors.forename: Dietmar
authors.initials: D
authors.lastname: Stalke