One-pot oligoamides syntheses from l-lysine and l-tartaric acid. Issue 20 (20th February 2017)

• Record Type: Journal Article
• Authors: Oliva, R.; Ortenzi, M. A.; Salvini, A.; Papacchini, A.; Giomi, D.
• Is Part Of: RSC advances. Volume 7:Issue 20(2017)
• Page Start: 12054
• Page End: 12062
• Publication Date: 2017-02-20
• Subjects: Chemistry -- Periodicals; 540.5
• DOI: 10.1039/c7ra00676d
• Languages: English
• ISSNs: 2046-2069

Abstract

Abstract : Oligoamides based on natural raw materials, l -lysine andl -tartaric acid, were synthesized using one-pot processes. Al -lysine diketopiperazine structure was obtained with good selectivity without protection/deprotection steps. Abstract : Oligoamides based on natural raw materials, l -lysine andl -tartaric acid, were synthesized using one-pot processes. Anl -lysine diketopiperazine structure was obtained with good selectivity without protection/deprotection steps. Reactions were performed using two methods, the first involving the use of solvent and catalyst under a nitrogen atmosphere, the second exploiting the "raw" monomers under vacuum. The reaction products were characterized through FT-IR, NMR and MALDI spectroscopies, acid–base titration, SEC and polarimetric analyses. Thermal properties were evaluated by DSC and TGA analyses.