Abstract
The high temperature gas-phase reaction of 2-chlorothiophene with a mixture of diethyl disulfide and diethyl trisulfide constitutes a simple one-step synthesis of a 4∶1 mixture of thieno[2,3-b]- and thieno[3,2-b]-thiophenes. Their total yield depends on the nature of the donor of the ethylthio group.
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Communication 30 of the series “High temperature organic synthesis”. For Communication 29, see [1].
Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 8, pp. 1041–1044, August, 1988.
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Korchevin, N.A., Sukhomoazova, é.N., Turchaninova, L.P. et al. Formation of thienothiophenes in the high temperature reaction of 2-chlorothiophene with compounds containing the c2h5s group. Chem Heterocycl Compd 24, 857–860 (1988). https://doi.org/10.1007/BF00479335
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DOI: https://doi.org/10.1007/BF00479335