We’ll be discussing some of the latest developments in chemical about CAS: 499-40-1, Name is (2R,3S,4R,5R)-2,3,4,5-Tetrahydroxy-6-(((2S,3R,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)tetrahydro-2H-pyran-2-yl)oxy)hexanal, molecular formula is C12H22O11. In a Article，once mentioned of 499-40-1, Synthetic Route of 499-40-1
A series of poly(arylamine)s formulated as [-(Ar)mNR-] n(Ar = p-phenylene or pyridine-2,5-diyl; m = 2-4; R = H or alkyl) were prepared. Ni- or Pd-promoted dehalogenative polycondensation of the corresponding BOC- (tert-butoxycarbonyl-) substituted dibromo monomers afforded poly(oligo-p-phenyleneamine)s, [-(p-C6H4) mN(BOC)-]n (m = 2-4). Deprotection of the BOC group of the polymer at 200 C gave [-(p-C6H4NH-]n (m = 2-4). The polymer behaved as an intermediate polymer between poly(aniline) PAn and poly(p-phenylene) PPP. For example, [-(p-C6H4NH-] n, P(DPA), showed two oxidation peaks at around 0.3 and 0.65 V vs Ag+/Ag with equal intensity in its CV (cyclic voltammetry) chart, similar to PAn; in contrast, the CV chart of [-(p-C6H 4)4NH-]n exhibited a main oxidation peak at 0.60 V vs Ag+/Ag, similar to PPP. ESR data of iodine-doped polymers supported the formation of radical species in oxidation of the polymer. The polymers were photoluminescent and gave quantum yields of 12-46%. Polymers with the pyridine unit formed metal complexes with MX2 (M = Cu, Ni, Co), and CD (circular dichroism) spectra of the metal complexes of the pyridine polymer having chiral side chains suggested formation of a helical structure by the metal complexation.
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Reference：
Tetrahydropyran – Wikipedia,
Tetrahydropyran – an overview | ScienceDirect Topics