0000000001304509

AUTHOR

Qian Yi Li

Synthesis and X-ray structure of amide-based macrocycles, catenanes and pretzelane

The syntheses and crystal structure studies of amide-based catenanes derived from m-phenylene diacrylic acid and 5-acetoxy isophthalic acid (17% and 3% yield of 4a and 4b resp.) and octalactam macrocycles (21% yield of 3) are described. Hydrogen bonding patterns play a key role in the formation of the different conformations of octalactam 3. The crystal structures of 3 reveal a number of hydrogen-bonding interactions between the macrocycle and two different solvent molecules, which are presumably responsible for the different conformations. Furthermore, we report the X-ray structure of a catenane, which was converted into a “pretzelane” by bridging two phenolic hydroxy groups with a p-xylyl…

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CCDC 161427: Experimental Crystal Structure Determination

Related Article: Qian Yi Li, E.Vogel, A.H.Parham, M.Nieger, M.Bolte, R.Frohlich, P.Saarenketo, K.Rissanen, F.Vogtle|2001|Eur.J.Org.Chem.|2001|4041|doi:10.1002/1099-0690(200111)2001:213.0.CO;2-7

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CCDC 161426: Experimental Crystal Structure Determination

Related Article: Qian Yi Li, E.Vogel, A.H.Parham, M.Nieger, M.Bolte, R.Frohlich, P.Saarenketo, K.Rissanen, F.Vogtle|2001|Eur.J.Org.Chem.|2001|4041|doi:10.1002/1099-0690(200111)2001:213.0.CO;2-7

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CCDC 161428: Experimental Crystal Structure Determination

Related Article: Qian Yi Li, E.Vogel, A.H.Parham, M.Nieger, M.Bolte, R.Frohlich, P.Saarenketo, K.Rissanen, F.Vogtle|2001|Eur.J.Org.Chem.|2001|4041|doi:10.1002/1099-0690(200111)2001:213.0.CO;2-7

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CCDC 161425: Experimental Crystal Structure Determination

Related Article: Qian Yi Li, E.Vogel, A.H.Parham, M.Nieger, M.Bolte, R.Frohlich, P.Saarenketo, K.Rissanen, F.Vogtle|2001|Eur.J.Org.Chem.|2001|4041|doi:10.1002/1099-0690(200111)2001:213.0.CO;2-7

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