Chiu, Ting-Yu et al. published their research in Chemistry – An Asian Journal in 2019 | CAS: 604-69-3

(2S,3R,4S,5R,6R)-6-(Acetoxymethyl)tetrahydro-2H-pyran-2,3,4,5-tetrayl tetraacetate (cas: 604-69-3) belongs to esters. Volatile esters with characteristic odours are used in synthetic flavours, perfumes, and cosmetics. Certain volatile esters are used as solvents for lacquers, paints, and varnishes. Esters are more polar than ethers but less polar than alcohols. They participate in hydrogen bonds as hydrogen-bond acceptors, but cannot act as hydrogen-bond donors, unlike their parent alcohols. This ability to participate in hydrogen bonding confers some water-solubility.Product Details of 604-69-3

A Dinuclear Dysprosium Complex as an Air-Stable and Recyclable Catalyst: Applications in the Deacetylation of Carbohydrate, Aliphatic, and Aromatic Molecules was written by Chiu, Ting-Yu;Chin, Wei;Guo, Jiun-Rung;Liang, Chien-Fu;Lin, Po-Heng. And the article was included in Chemistry – An Asian Journal in 2019.Product Details of 604-69-3 The following contents are mentioned in the article:

Three dinuclear dysprosium complexes, [Dy2(hmb)2(OTf)2(H2O)4].HOTf.2THF (A.HOTf.2THF), [Dy2(hmb)2(OTf)2(H2O)4].(CH3)2CO (A.(CH3)2CO) and [Dy2(hmi)3(H2O)2].2HOTf (B.2HOTf), were synthesized by the reaction of Dy(OTf)3 and the Schiff-base ligands H2hmb (N’-(2-hydroxy-3-methoxybenzylidene)benzohydrazide) or H2hmi ((2-hydroxy-3-methoxyphenyl)methylene isonicotinohydrazine). Complex A.HOTf.2THF was an effective and chemoselective catalyst for the deacetylation of esters in methanol. This method offered an efficient route to selectively deacetylated monosaccharides and disaccharides in high yields and a green catalyst that can be easily recycled and reused. This method was especially valuable for the preparation of peracetylated hemiacetal of monosaccharides and disaccharides with yields of 85 to 88 and 65 to 85%, resp. Complex (B.2HOTf), in comparison, indicated that coordinated triflate ions were key to activation of the regioselective anomeric deacetylation. This study involved multiple reactions and reactants, such as (2S,3R,4S,5R,6R)-6-(Acetoxymethyl)tetrahydro-2H-pyran-2,3,4,5-tetrayl tetraacetate (cas: 604-69-3Product Details of 604-69-3).

(2S,3R,4S,5R,6R)-6-(Acetoxymethyl)tetrahydro-2H-pyran-2,3,4,5-tetrayl tetraacetate (cas: 604-69-3) belongs to esters. Volatile esters with characteristic odours are used in synthetic flavours, perfumes, and cosmetics. Certain volatile esters are used as solvents for lacquers, paints, and varnishes. Esters are more polar than ethers but less polar than alcohols. They participate in hydrogen bonds as hydrogen-bond acceptors, but cannot act as hydrogen-bond donors, unlike their parent alcohols. This ability to participate in hydrogen bonding confers some water-solubility.Product Details of 604-69-3

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics