Most of the compounds have physiologically active properties, and their biological properties are often attributed to the heteroatoms contained in their molecules, and most of these heteroatoms also appear in cyclic structures. A Journal, Bulletin de la Societe Chimique de France called Hexathydro-o-phthalic acids, Author is Vavon, G.; Peignier, P., which mentions a compound: 610-09-3, SMILESS is O=C([C@H]1[C@@H](C(O)=O)CCCC1)O, Molecular C8H12O4, Quality Control of cis-Cyclohexane-1,2-dicarboxylic acid.
Hydrogenation of mono-Me o-phthalate with Pt black as catalyst gives cis-hexahydrophthalate (I). The l-rotatory isomer of I (m. 148-9°, [α573 6.67°, c 0.1 in EtOH) gives on saponification an inactive acid. The l-rotatory cis-hexahydrophthalamide ([α]573 -15.4°, c 0.02 in EtOH), isolated by means of the quinine salt, gives on heating an inactive imide.
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Reference:
Benzisoxazole – Wikipedia,
Benzisoxazole – an overview | ScienceDirect Topics