Epoxy compounds usually have stronger nucleophilic ability, because the alkyl group on the oxygen atom makes the bond angle smaller, which makes the lone pair of electrons react more dissimilarly with the electron-deficient system. Compound: Ethyl 3,5-Dimethyl-2-pyrrolecarboxylate, is researched, Molecular C9H13NO2, CAS is 2199-44-2, about Photophysical properties of a C6 hydrocarbon-linked porphyrin dimer.Name: Ethyl 3,5-Dimethyl-2-pyrrolecarboxylate.
The porphyrin dimer I and its Zn complex were prepared Fluorescence quantum yields and excited singlet and triplet state lifetimes, recorded for the dimers and the corresponding monomer species, suggest that the dimeric porphyrins exist in solution in both open and closed conformations. The open conformations retain photophys. properties similar to those of the monomerics but the closed conformations do not fluoresce.
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Reference:
Thiazolidine – Wikipedia,
Thiazolidine – ScienceDirect.com