One-Monomer Dynamic Libraries

Selected equilibrium systems (DLs) for which a quantitative description in terms of EM values is available will be conveniently divided taking into account the reaction used to generate the DL. 

In a seminal work published in 1977, Ito and coworkers described the behaviour of a DL generated by reaction of 8-caprolactone in the presence of catalytic potassium ter -butoxide (0.5—2% mol) in THF at 

Another notable example of DL of ester compounds is due to Ercolani et al. In this case, ROP of d-propiolactone in chloroform solution at 

Other weU-behaved ring-chain systems (DLs) based on the transesterifi-cation reaction were studied over the years in the field of polymer chemistry. For instance, Semlyen and coworkers investigated DLs of cyclic and linear polyethyleneterephthalates, polydecamethyleneadipates, polytrimethylene-succinates, polydecamethyleneftiniarates and polydecamethylenema-leates. ° In all cases, a large number of molar cyclization constants (EM values) were obtained for the macrocycles involved. 

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