Some new bis[1-(2-aroyl-3-aryl)cyclopropylcarbonyl]benzenes and pyridines IV - VI have been prepared by the cycloaddition of dimethylsulfonium phenacylide to 1,1'-(1,3-, 1,4-phenylene, and 2,6-pyridylene)-bis(3-aryl-2-propen-1-ones) I - III by adopting two different methods. The advantages of the PTC method over the other have been discussed. The structures of the compound have been confirmed by spectral data.

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The synthesis of 1,3-bis(styrylsulfonyI)benzene in two isomeric forms (Z. Z and E , E) and their cyclopropanation with dimethylsulfonium methylide has been described. The configurational assignments of these compounds have been made on the basis of IR, 'H NMR and ''C N M R spectral data.

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