Synthetic Routes to, Transformations of, and Rather Surprising Stabilities of (<i>N</i>-Methyl-<i>N</i>-phenylcarbamoyl)sulfenyl Chloride, ((<i>N</i>-Methyl-<i>N</i>-phenylcarbamoyl)dithio)carbonyl Chloride, and Related Compounds
作者:Alex M. Schrader、Alayne L. Schroll、George Barany
DOI:10.1021/jo201329n
日期:2011.10.7
The title compound classes, (carbamoyl)sulfenyl chlorides and ((carbamoyl)dithio)carbonyl chlorides, have been implicated previously as unstable, albeit trappable, intermediates in organosulfur chemistry. The present work reports for each of these functional groups: (i) several routes to prepare it in the N-methylaniline family; (ii) its direct structural characterization by several spectroscopic techniques;
A general strategy for elaboration of the dithiocarbonyl functionality, -(C:O)SS-: application to the synthesis of bis(chlorocarbonyl)disulfane and related derivatives of thiocarbonic acids
作者:George Barany、Alayne L. Schroll、Andrew W. Mott、David A. Halsrud
DOI:10.1021/jo00172a056
日期:1983.12
Mott, Andrew W.; Barany, George, Journal of the Chemical Society. Perkin transactions I, 1984, # 11, p. 2615 - 2621
作者:Mott, Andrew W.、Barany, George
DOI:——
日期:——
Vibrational spectra and structures of halogencarbonyl alkyldisulfanes XC(O)SSR with X=F, Cl and R=CF3, CH3
作者:Angelika Hermann、Sonia E. Ulic、Carlos O. Della Védova、Hans-Georg Mack、Heinz Oberhammer
DOI:10.1016/s0022-1139(01)00515-2
日期:2001.12
The disulfides FC(O)SSCF3, ClC(O)SSCF3 and ClC(O)SSCH3 have been prepared by new synthetic routes. Infrared and Raman spectra have been recorded and assigned. From the vibrational spectra and from the gas electron diffraction experiment it was concluded that FC(O)SSCF3 exists as a mixture of syn- and anti-conformers (C=O synperiplanar/antiperiplanar to S-S bond). The main conformer (83(5)% and DeltaG degrees = G degrees (anti) - G degrees (syn) = 0.95(28) kcal mol(-1)) possesses syn-structure. The vibrational spectra of the chlorocarbonyl disulfanes are interpreted in terms of a single conformer, but small amounts (<5%) of a second conformer cannot be excluded. Quantum chemical calculations (HF, MP2, B3PW91 with 6-31G* basis sets) reproduce the experimental results (conformational properties, geometric structure and vibrational frequencies) satisfactorily. The predicted difference in Gibbs free energy, DeltaG degrees, for FC(O)SSCF3 varies between 0.8 and 1.5 kcal mol(-1), those for the chlorine derivatives are larger than 2.6 kcal mol(-1). (C) 2001 Elsevier Science B.V. All rights reserved.
BARANY, G.;SCHROLL, A. L.;MOTT, A. W.;HALSRUD, D. A., J. ORG. CHEM., 1983, 48, N 24, 4750-4761
作者:BARANY, G.、SCHROLL, A. L.、MOTT, A. W.、HALSRUD, D. A.