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Investigation in the series of condensed heteroaromatic systems including a thiophene ring

Communication 20. Metallation of benzo-[b]-naphtho-[2,3-d]-thiophene and desulfurization of its alkyl derivatives
  • V. P. Litvinov
  • D. D. Gverdtsiteli
  • E. D. Lubuzh
Physical Chemistry
  • 18 Downloads

Conclusions

  1. 1.

    Under the action of n-butyllithium on benzo-[b]-naphtho-[2, 3-d]-thiophene (I), the lithium atom is inserted in the 4-position of the benzonaphthothiophene system.

     
  2. 2.

    In the desulfurization of 4- and 7-alkyl derivatives of benzonaphthothiophene (I) by Raney nickel, together with desulfurization there is a partial hydrogenation of the alkyl derivatives ofβ-phenylnaphthalene formed.

     
  3. 3.

    On the basis of a comparative study of the IR spectra of 4- and 7-alkyl derivatives of benzonaphthothiophene (I) and alkyl derivatives of naphthalenes, general principles in the vibrational spectra of these systems were found, which permitted a reliable confirmation of the position of the substituent in 4- and 7-alkyl derivatives of (I).

     

Keywords

Hydrogenation Nickel Lithium Naphthalene Thiophene 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Consultants Bureau 1972

Authors and Affiliations

  • V. P. Litvinov
    • 1
  • D. D. Gverdtsiteli
    • 1
  • E. D. Lubuzh
    • 1
  1. 1.N. D. Zelinskii Institute of Organic ChemistryAcademy of Sciences of the USSRUSSR

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