83237-15-4, Name is 3-(3,5-Di-tert-butyl-1-hydroxy-4-oxocyclohexa-2,5-dien-1-yl)propanoic acid, molecular formula is C17H26O4, belongs to thiazolidines compound, is a common compound. In a patnet, author is Facchinetti, Victor, once mentioned the new application about 83237-15-4, COA of Formula: C17H26O4.
Crystal structures of 3-(2H-1,3-benzodioxol-5-ylmethyl)-2-(m- and p-nitrophenyl)-1,3-thiazolidin-4-ones: different roles of the oxygen atoms
The crystal structures of two isomeric 3-(2H-1,3-benzodioxol-5-ylmethyl)-2-(aryl)-1,3-thiazolidin-4-one compounds (1: aryl=4-O2NC6H4; 2: aryl=3-O2NC6H4) are reported. In both these nonplanar, compounds, the carbonyl oxygen is involved in intramolecular C-H center dot center dot center dot O hydrogen bonds. However, there are significant differences in the sets of intermolecular interactions, in particular the roles of the oxygen atoms, exhibited by the two compounds. Thus in 1, a dioxolyl oxygen and the two nitro group oxygen atoms are each involved in different chain forming C-H center dot center dot center dot O intermolecular hydrogen bonds, while the carbonyl oxygen atom is not involved in any intermolecular interaction. In 2, the dioxolyl oxygen atom is involved in the formation of centrosymmetric dimers, the carbonyl oxygen in three different C-H center dot center dot center dot O hydrogen bonds and the nitro group oxygens in two N-O center dot center dot center dot pi(aryl) interactions. Compound 2 exhibits also C-H center dot center dot center dot pi(phenyl), pi(phenyl)center dot center dot center dot pi(phenyl) and p(benzodioxolyl)center dot center dot center dot pi(benzodioxolyl) interactions, while in 1 only the latter interaction is present. Compound 1 crystallizes in the monoclinic space group, P2(1)/a with Z = 4, while compound 2 crystallizes in the triclinic space group, P (1) over bar, with Z = 2.
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Reference:
Thiazolidine – Wikipedia,
,Thiazolidine – ScienceDirect.com