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This review brings together the past and current methods for synthesizing the classical cucurbit[n]uril (Q[n]), structural variants, and derivatives. Here we refer to the first family of Q[n] as " classical," where the cavity is spheroidal and carry no substituents at any of the equatorial methine carbons or the methylene bridging carbons. The synthetic background and general physical and...
We have employed Bi(OTf) 3 (5 mol %) a catalyst not previously used in the synthesis of urea condensation products from α-dicarbonyl compounds, as a mild method for the synthesis of difficult to obtain glycolurils. There are limited synthetic examples of C-alkylated substituted glycolurils and even fewer carrying functionality on the alkyl substituent. We have successfully synthesised some...
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