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SYNTHESIS AND PROPERTIES OF 1,2-BENZODITHIINS
Schroth, Werner,Jordan, Hartwig,Spitzner, Roland
, p. 1421 - 1424 (1995)
Access to the title compounds (12-14) was achieved by two different syntheses starting from either phenylacetylene (1) or, from benzothiophene (2) by a reaction sequence formally equivalent to the insertion of sulfur.The key intermediates in both route
