CrCl2 mediated allylation of N-protected α-amino aldehydes. A versatile synthesis of polypeptides containing a hydroxyethylene isostere was written by Ciapetti, Paola;Taddei, Maurizio;Ulivi, Paola. And the article was included in Tetrahedron Letters in 1994.Computed Properties of C16H24N2O4 This article mentions the following:
Substituted allylic bromides react with N-protected amino aldehydes to give intermediate products for the synthesis of hydroxyethylene dipeptide isosteres. The low stereoselectivity of this reaction can be improved using aldehydes protected with hindered groups. This reaction can be efficiently applied to oligopeptide aldehydes. In the experiment, the researchers used many compounds, for example, (S)-tert-Butyl (1-(methoxy(methyl)amino)-1-oxo-3-phenylpropan-2-yl)carbamate (cas: 87694-53-9Computed Properties of C16H24N2O4).
(S)-tert-Butyl (1-(methoxy(methyl)amino)-1-oxo-3-phenylpropan-2-yl)carbamate (cas: 87694-53-9) belongs to esters. Esters are also usually derived from carboxylic acids. It may also be obtained by reaction of acid anhydride or acid halides with alcohols or by the reaction of salts of carboxylic acids with alkyl halides. Liquid esters of low volatility serve as softening agents for resins and plastics. Esters also include many industrially important polymers. Polymethyl methacrylate is a glass substitute sold under the names Lucite and Plexiglas; polyethylene terephthalate is used as a film (Mylar) and as textile fibres sold as Terylene, Fortrel, and Dacron.Computed Properties of C16H24N2O4
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics