The preparation of ester heterocycles mostly uses heteroatoms as nucleophilic sites, which are achieved by intramolecular substitution or addition reactions. Compound: (S)-(2,2-dimethyl-[1,3]-dioxolan-4-yl)-methylamine( cas:82954-65-2 ) is researched.Recommanded Product: 82954-65-2.Schade, Boris; Singh, Abhishek Kumar; Wycisk, Virginia; Cuellar-Camacho, Jose Luis; von Berlepsch, Hans; Haag, Rainer; Boettcher, Christoph published the article 《Stereochemistry-Controlled Supramolecular Architectures of New Tetrahydroxy-Functionalized Amphiphilic Carbocyanine Dyes》 about this compound( cas:82954-65-2 ) in Chemistry – A European Journal. Keywords: amphiphilic cyanine dye J aggregate chirality; chirality; dyes/pigments; hydrogen bonds; supramolecular chemistry; synthesis design. Let’s learn more about this compound (cas:82954-65-2).
The syntheses of novel amphiphilic 5,5′,6,6′-tetrachlorobenzimidacarbocyanine (TBC) dye derivatives with aminopropanediol head groups, which only differ in stereochem. (chiral enantiomers, meso form and conformer), are reported. For the achiral meso form, a new synthetic route towards asym. cyanine dyes was established. All compounds form J aggregates in water, the optical properties of which were characterized by means of spectroscopic methods. The supramol. structure of the aggregates is investigated by means of cryo-transmission electron microscopy, cryo-electron tomog. and AFM, revealing extended sheet-like aggregates for chiral enantiomers and nanotubes for the mesomer, resp., whereas the conformer forms predominately needle-like crystals. The experiments demonstrate that the aggregation behavior of compounds can be controlled solely by head group stereochem., which in the case of enantiomers enables the formation of extended hydrogen-bond chains by the hydroxyl functionalities. In case of the achiral meso form, however, such chains turned out to be sterically excluded.
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Reference:
Tetrahydropyran – Wikipedia,
Tetrahydropyran – an overview | ScienceDirect Topics