In 2007,Cordeiro, Alessandra; Jimeno, Maria Luisa; Maestro, Miguel A.; Camarasa, Maria-Jose; Quesada, Ernesto; San-Felix, Ana published 《Synthesis of Highly Condensed Polycyclic Carbohydrates by Reaction of a Spiro-Cyclic Enamino Sulfonate Derived from D-Xylofuranose with Bifunctional Reagents》.Journal of Organic Chemistry published the findings.HPLC of Formula: 6149-41-3 The information in the text is summarized as follows:
The appropriately substituted 5-O-tosyl derivative I, easily prepared from 1,2-O-isopropylidene-α-D-xylofuranose, serves as a useful precursor for the preparation of highly condensed cyclic carbohydrates. The synthesis involves a first cyclization of the 5-O-tosyl sugar derivative I to a highly reactive cyclic enamine, which subsequently undergoes the nucleophilic attack of a bifunctional reagent X(CH2)nZ in a regio- and stereospecific way. Finally, a spontaneous cyclization step allows the formation of a stereochem. defined extra ring, fused to the sugar backbone. The functionalization and size of this ring can be varied by the proper choice of the bifunctional reagent. X-ray diffraction anal. and intensive NMR studies with one of these carbohydrates II were performed to highlight the strained nature of these compounds The results came from multiple reactions, including the reaction of Methyl 3-hydroxypropanoate(cas: 6149-41-3HPLC of Formula: 6149-41-3)
Methyl 3-hydroxypropanoate(cas: 6149-41-3) belongs to esters with low molecular weight are commonly used as fragrances and found in essential oils and pheromones. Their flexibility and low polarity is manifested in their physical properties; they tend to be less rigid (lower melting point) and more volatile (lower boiling point) than the corresponding amides. HPLC of Formula: 6149-41-3
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics