Macrocycles by Olefination of Dialdehyde
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George BΓΌchi; Hans WΓΌest
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Article
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1979
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John Wiley and Sons
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German
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## Abstract Conjugated cyclic divinyl ketones containing fifteen and seventeen membered rings have been prepared in a single step by condensation of 1,3βbis (dimethylphosphono)β2βpropanone (**10**) with the dialdehydes **14**, **17**, **20**, and **42** in the presence of hydrogencarbonate in aqueo