Synthesis of novel 1,4-naphthoquinone-based molecules by an Ugi-type four-component reaction was written by Rabelo, Waleria F.;Echemendia, Radell. And the article was included in Synthetic Communications in 2019.Recommanded Product: 604-69-3 The following contents are mentioned in the article:
An Ugi-type multicomponent approach for the synthesis of novel 3-substituted 1,4-naphthoquinones e.g., I was described. The process relied on the execution of an enol-Ugi reaction between an enol-3-nitro-1,4-naphthoquinone with different secondary diamines and isocyanides. The novel methodol. showed great chem. efficiency and versatility. 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: 604-69-3Recommanded Product: 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. Esters perform as high-grade solvents for a broad array of plastics, plasticizers, resins, and lacquers, and are one of the largest classes of synthetic lubricants on the commercial market. Polyesters are important plastics, with monomers linked by ester moieties. Many esters have the potential for conformational isomerism, but they tend to adopt an s-cis (or Z) conformation rather than the s-trans (or E) alternative, due to a combination of hyperconjugation and dipole minimization effects. The preference for the Z conformation is influenced by the nature of the substituents and solvent, if present. Lactones with small rings are restricted to the s-trans (i.e. E) conformation due to their cyclic structure.Recommanded Product: 604-69-3
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics