1-Bromonaphthalene

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2,2'-Dipyridyl

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4,4'-Bipyridine

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p-Toluenesulfonic anhydride

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Vinyl sulfone

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Phenyl vinyl sulfone

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Methyl vinyl sulfone

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Ethyl vinyl sulfone

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Cyclopropanecarboxylic acid

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Cyclobutanecarboxylic acid

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Cyclopentanecarboxylic acid

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Cyclopentanecarbonyl chloride

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