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 Molecular Rectangle Formed by Head-to-tail Self-Assembly of 1-(Dipyrrin-2-yl)-1′-(dipyrrin-3-yl)methane.Name: Ethyl 3,5-Dimethyl-2-pyrrolecarboxylate.
1-(Dipyrrin-2-yl)-1′-(dipyrrin-3-yl)methane (I), the N-confused analog of biladiene-ac, was prepared by condensation of 2,3′-dipyrromethane with two mols. of 2-formylpyrrole in CH2Cl2 in the presence of HBr. Self-assembly of the ligand with Zn(II) in CH2Cl2 and MeOH offers a dinuclear dimeric complex with a ligand:metal ratio of 2:2. X-ray crystal structure anal. reveals two ligands bound through a head-to-tail pattern to two Zn centers to form a severely distorted helical conformation, which has the shape of a rectangle.
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Reference:
Thiazolidine – Wikipedia,
Thiazolidine – ScienceDirect.com