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, Berichte der Deutschen Chemischen Gesellschaft called An oxidation product of orcinol, Author is Henrich, F.; Schmidt, W.; Rossteutscher, F., which mentions a compound: 600-05-5, SMILESS is O=C(O)C(Br)CBr, Molecular C3H4Br2O2, COA of Formula: C3H4Br2O2.
When 200 g. orcinol rubbed up with a little H2O is dissolved in 100 g. KOH in 200 cc. H2O, filtered, diluted to 3.5 l. and allowed to stand 14 days exposed to the air in a large dish, it gradually becomes more and more brown; it is then acidified, filtered after 1 day and the precipitate dried; it forms a brown-red crystalline mass with 0.04% ash and seps. from dilute alc. or glacial AcOH, when not heated too long, in ruby-red crystals (a), m. 178-81° (decomposition), having the comp. C14H12O6.H2O, losing its H2O after 2-3 h. at 145°; it now decomposes 195° and is easily soluble in cold soda; it can be purified by heating on the H2O bath in a little H2O with BaCO2 for some time, filtering hot, cooling and adding dilute HCl. Distilled with Zn dust in H, it gives a brown oily mass which, when washed in Et2O with NaOH and H2O, yields a heavy, brown, non-crystallizable oil. Boiled 0.5 h. with Ac2O, it gives a triacetate, C20H18O8, crystals from C6H4-ligroin (1:4), m. 127°, hardly attacked by cold alkalies, dissolving with brown-red color on heating (at once in alc. KOH), soluble in AcOH with yellow color which quickly disappears on boiling with Zn dust. (a) suspended in 20 parts H2O and saturated with SO2, filtered and extracted repeatedly with Et2O, gives a pentahydroxyditolyl, (HO)3C5HMeC6H2Me(OH)2, needles from H2O containing SO2, m. 254°, reduces Fehling and NH4-Cu solutions, oxidized back to (a) by K2Cr2O7 in dilute H2SO4, slowly in alk. solution by air and, quickly, by H2O2. Penta-acetate, crystals from C4H6-ligroin (1:1), m. 155°, mol. weight in freezing CHCl3 471-97, attacked by alkalies only on warming. (a) is probably a hydrate of a hydroxyquinone, (HO)2C6H2MeC6HMe(OH)(:O)2.
This compound(2,3-Dibromopropionic acid)COA of Formula: C3H4Br2O2 was discussed at the molecular level, the effects of temperature and reaction time on the properties of the compound were discussed, and the optimum reaction conditions were selected.
Reference:
Piperidine – Wikipedia,
Piperidine | C5H11N – PubChem