Flexible, Long-Chain Alkanediamines as Building Blocks for Catenanes - Steric Hindrance of Circumrotation by Derivatization
New catenanes of the amide‐linked type, such as 11 with one macrocycle containing two (CH2)12 chains are synthesized from long‐chain alkanediamines in yields of up to 21%. Consequently, the preorganization afforded by fixed and angular building units – so far considered essential – proves not to be...
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Veröffentlicht in: | Liebigs Annalen 1997-04, Vol.1997 (4), p.761-766 |
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