95038-11-2Relevant academic research and scientific papers
Ring-opened azlactone initiators for atom transfer radical polymerization
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, (2008/06/13)
Initiators for atom transfer radical polymerizations are described. The initiators have an azlactone or ring-opened azlactone moiety to provide telechelic (co)polymers.
LINEAR OLIGOPEPTIDES. CXXII. FIRST SOLID-STATE STRUCTURAL ANALYSIS OF A COMPLETE Nα-MONO-, DI-, AND TRI-HALOACETYLATED α-AMINO ACID SERIES
Valle, Giovanni,Bonora, Gian Maria,Toniolo, Claudio
, p. 481 - 486 (2007/10/02)
A solid-state structural analysis of Nα-mono-, di-, and tri-chloroacetyl-α-aminoisobutyric acid derivatives was performed using X-ray diffraction.In all three structures the α-aminoisobutyryl residues shows a φ, ψT set of torsion angles falling in the region of the Ramachandran map where α- and 310-helices are found.The conformation of the amide bond (torsion angle ω) is always trans and the substituted acetamido and carboxylic acid groups are nearly perpendicular to each other.The conformation of the chloroacetamido group is always such that all chlorine atoms tend to reside far from the nitrogen atom.There are no intramolecular hydrogen bonds in the three structures.The intramolecular hydrogen bonding schemes for the three chloroacetylated derivatives are different.
