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Volumn 61, Issue 13, 1996, Pages 4232-4239

Transamination studies on N-(1-alkenylthio)phthalimides and related compounds. Synthesis of 1-alkenesulfenamides and 1-alkenesulfonamides

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Indexed keywords


EID: 0000867222     PISSN: 00223263     EISSN: None     Source Type: Journal    
DOI: 10.1021/jo9522163     Document Type: Article
Times cited : (25)

References (50)
  • 1
    • 37049090681 scopus 로고
    • Merseburg, Germany, July 10-15
    • Presented in part at the 16th International Symposium on the Organic Chemistry of Sulfur, Merseburg, Germany, July 10-15, 1994 and at the 78th Canadian Chemical Conference, Guelph, Ontario, May 28-June 1, 1995. Aspects of this project have been published in communication form. See: Schwan, A. L.; Refvik, M. D. J. Chem. Soc., Chem. Commun. 1995, 1949.
    • (1994) 16th International Symposium on the Organic Chemistry of Sulfur
  • 2
    • 37049090681 scopus 로고
    • Guelph, Ontario, May 28-June 1
    • Presented in part at the 16th International Symposium on the Organic Chemistry of Sulfur, Merseburg, Germany, July 10-15, 1994 and at the 78th Canadian Chemical Conference, Guelph, Ontario, May 28-June 1, 1995. Aspects of this project have been published in communication form. See: Schwan, A. L.; Refvik, M. D. J. Chem. Soc., Chem. Commun. 1995, 1949.
    • (1995) 78th Canadian Chemical Conference
  • 3
    • 37049090681 scopus 로고
    • Presented in part at the 16th International Symposium on the Organic Chemistry of Sulfur, Merseburg, Germany, July 10-15, 1994 and at the 78th Canadian Chemical Conference, Guelph, Ontario, May 28-June 1, 1995. Aspects of this project have been published in communication form. See: Schwan, A. L.; Refvik, M. D. J. Chem. Soc., Chem. Commun. 1995, 1949.
    • (1995) J. Chem. Soc., Chem. Commun. , pp. 1949
    • Schwan, A.L.1    Refvik, M.D.2
  • 4
    • 33845183598 scopus 로고
    • For reviews on the synthesis and reactions of sulfenamides see: (a) Craine, L.; Raban, M. Chem. Rev. 1989, 89, 689. (b) Capozzi, G.; Modena, G.; Pasquato, L. In The Chemistry of Sulfenic Acids and their Derivatives; Patai, S., Ed.; J. Wiley & Sons: New York, 1990; p 487.
    • (1989) Chem. Rev. , vol.89 , pp. 689
    • Craine, L.1    Raban, M.2
  • 9
    • 0003649925 scopus 로고
    • Patai, S., Ed.; J. Wiley & Sons: New York, Chapter 2
    • For an excellent review of the chiroptical properties of sulfenamides see: Kost, D.; Raban, M. In The Chemistry of Sulfenic Acids and their Derivatives; Patai, S., Ed.; J. Wiley & Sons: New York, 1990; Chapter 2.
    • (1990) The Chemistry of Sulfenic Acids and Their Derivatives
    • Kost, D.1    Raban, M.2
  • 10
    • 0042574925 scopus 로고
    • and references therein
    • Kost, D.; Raban, M. J. Am. Chem. Soc. 1982, 104, 2960 and references therein.
    • (1982) J. Am. Chem. Soc. , vol.104 , pp. 2960
    • Kost, D.1    Raban, M.2
  • 34
    • 3643070156 scopus 로고    scopus 로고
    • note
    • Full practical details of the preparation of compounds 4 will presented elsewhere.
  • 37
    • 3643123341 scopus 로고    scopus 로고
    • note
    • 1H NMR and GC/MS revealed two isomeric N,N-bis(1-methylethyl)hexenesulfenamides in an expected ratio.
  • 38
    • 3643095227 scopus 로고    scopus 로고
    • note
    • Compounds 6 are not particularly stable: they have a limited lifetime in the freezer and do not exhibit ideal chromatographic behavior. Loss of a benzoyl unit is one of their fates. For this reason, satisfactory elemental analysis could not be obtained. A referee has suggested that compounds 6 may not have the structures that we have assigned to them, but that they could possess C=O and C=N bonds rather than two C=O bonds. Indeed, based on our synthetic method, structures such as 1-alkenyl-SN-C(Ph)OC(O)Ph would also conform with the measured spectral data. The alternative isomers would also be expected to undergo chemistry consistent with our experimental observations.
  • 42
    • 3643134685 scopus 로고    scopus 로고
    • note
    • The solvent was DMSO. The sample decomposed rapidly above 185 °C.
  • 44
    • 3643056522 scopus 로고    scopus 로고
    • note
    • Other primary amines afforded mixtures containing a number of constituents whose identity changed thoughout workup. One component, isolated from a transamination attempt with n-hexylamine, was determined to be N,N′-dit(1-hexyl)phthalamide (19%).
  • 45
    • 85087581649 scopus 로고    scopus 로고
    • note
    • 1H NMR spectra, but not in the spectrum of pure material.
  • 46
    • 85087582801 scopus 로고    scopus 로고
    • note
    • 1H NMR spectra of the alkenesulfenamides 8 generated from transaminations of thiophthalimides 7. Only in the synthesis of sulfenamide 8a did we observe a ring-opening product of the type 13 (ca. 10%). Other experiments have shown that the ring-opened product would not survive the oxidation process.
  • 48
    • 0000540212 scopus 로고
    • Expeditious proton removal from the quaternary nitrogen of 14 requires that the lone pair left behind is in conjugation with the carbonyl, see: Perrin, C. L. Acc. Chem. Res. 1989, 22, 268. It would seem logical that with more hydrogens on the nitrogen, the required conformation will be more achievable and the hydrogen transfer more rapid.
    • (1989) Acc. Chem. Res. , vol.22 , pp. 268
    • Perrin, C.L.1


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