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Strained phenylacetylene macrocycles, cyclic [3]- and [4]metaphenylacetylenes ([n]CMPAs) and methoxy derivatives, and cyclic [5]- to [9]paraphenylacetylenes ([n]CPPAs) were prepared using a strategy based on the McMurry coupling reaction. The physicochemical and supramolecular properties of these substances were determined. Interestingly, apart from [3]CMPAs, compounds in these series possess preorganized three-dimensional cavities.
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Takeshi Kawase (2007) studied this question.
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