Journal of Organic Chemistry p. 967 - 971 (1982)
Update date:2022-09-26
Topics:
Hall, Richard H.
Hertog, Herman J. den
Reinhoudt, David N.
Tetra- and trialkylthiophenes 4-6 react with 2-butynedinitrile in the presence of 1 equiv of aluminum chloride in dichloromethane at 0 deg C via <2 + 2> cycloaddition to 2-thiabicyclo<3.2.0>hepta-3,6-diene-6,7-dicarbonitriles 7-10 as the major products.Re
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