Month: November 2023

Highly Stereoselective 2-Oxonia-Cope Rearrangement: A Platform Enabling At-Will Control of Regio-, Enantio-, and Diastereoselectivity in the Vinylogous Aldol Reactions of Aldehydes was written by Padarti, Akhil;Kim, Dongeun;Han, Hyunsoo. And the article was included in Organic Letters in 2018.Category: oxazolidine This article mentions the following:

A distinctly different approach for the vinylogous aldolation of aldehydes is described, which exploits 2-oxonia-Cope rearrangement reactions between two readily available partners, a set of rationally designed chiral homoallylic alc. synthons and aldehydes, under simple conditions. In these processes, chirality transfer from the former to the latter is nearly perfect, giving rise to excellent enantio- and diastereoselectivity without the regioselectivity issue associated with traditional vinylogous aldol reactions. In the experiment, the researchers used many compounds, for example, (S)-4-Phenyloxazolidin-2-one (cas: 99395-88-7Category: oxazolidine).

(S)-4-Phenyloxazolidin-2-one (cas: 99395-88-7) belongs to oxazolidine derivatives.Oxazolidines are readily available also from propargyl amines. Oxazolidines are cyclic condensation products of β-amino alcohols and aldehydes or ketone, and they undergo a facile and complete hydrolysis in aqueous solution. Alterations in carbonyl moiety control the rate of formation of a given β-amino alcohol.Category: oxazolidine

Referemce:
Oxazolidine – Wikipedia,
Oxazolidine | C3H7NO – PubChem

Synthesis of mechanically robust renewable poly(ester-amide)s through co-polymerisation of unsaturated polyesters and synthetic polypeptides was written by Brannigan, Ruairi P.;Heise, Andreas. And the article was included in European Polymer Journal in 2020.Related Products of 13590-42-6 This article mentions the following:

As an alternative to polyester-based materials, synthetic polypeptides have received a great deal of attention as bio-derived polymers for various applications. Polypeptide-based materials offer numerous advantages over traditional polyesters such as efficient and complete bio- and ecol. absorption, however, poor mech. robustness and low processability has prevented the com. application of polypeptides. Conversely, copolymers of polyesters and polypeptides have the potential to combine the mech. versatility of aliphatic polyesters while retaining the enhanced bio-absorption of polypeptides. Itaconic acid-based polyesters were crosslinked with modified telechelic poly(L-aspartic acid β-benzyl ester) and the amino acid-derived 2-vinyl-4,4-dimethylazlactone in order to assess their effect on their bulk materials properties. It was found that through variance of the polymer composition that the mech. properties and the hydrolytic degradation of the materials could be modulated. We believe that these crosslinked polymers offer a unique platform for the development of sustainable degradable materials. In the experiment, the researchers used many compounds, for example, (S)-Benzyl 2-(2,5-dioxooxazolidin-4-yl)acetate (cas: 13590-42-6Related Products of 13590-42-6).

(S)-Benzyl 2-(2,5-dioxooxazolidin-4-yl)acetate (cas: 13590-42-6) belongs to oxazolidine derivatives.Oxazolidines are readily available also from propargyl amines. In another report, the incorporation of an additional substituted oxazolidine ring over a range of new biphenylazepinium salt organocatalysts for the asymmetric epoxidation of alkenes improved enantiocontrol over the parent structures.Related Products of 13590-42-6

Referemce:
Oxazolidine – Wikipedia,
Oxazolidine | C3H7NO – PubChem