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63096-02-6

Articles about 63096-02-6Total 3 be found

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Enzymatic approach to both enantiomers of N-Boc hydrophobic amino acids
Protease catalysed hydrolysis of N-Boc-amino acid esters allows us to obtain N-Boc l-acids and d-esters of amino butanoic acid, nor-leucine, nor-valine, leucine and t-leucine in excellent ee. The reaction occurs in short reaction times and high concentrations. When a biphasic system (buffer-MTBE) is employed, a strong solvent effect is observed. This method could be of significance for the preparation of d-t-leucine, for which a practical method is currently unavailable.
Agosta, Eleonora,Caligiuri, Antonio,D'Arrigo, Paola,Servi, Stefano,Tessaro, Davide,Canevotti, Renato
p. 1995 - 1999
(2007/10/03)

Development of a temporary marker for peptides
3-[(N,N-Dimethylaminophenyl)-4′-diazenyl]benzoic acid was coupled with several amino acid esters and the product acylated further with Boc. The material thus obtained was then submitted to cleavage by electrolysis and nucleophilic attack in order to evaluate the possibility of using this chromophore as a temporary marker.
Sameiro,Goncalves,Maia, Hernani L.S.
p. 1480 - 1485
(2007/10/03)

A temporary marker for biological applications
Having in mind the development of new colour labelled amino acid derivatives, a carboxyl azo dye was coupled to amino acid esters to give the corresponding orange N-acyl derivatives, which were in turn further acylated at their N-terminus with Boc for investigation of the conditions of possible cleavage of the chromophore by electrolysis or with nucleophiles. While difficulties were met with electrolysis owing to competitive reduction of the azo group, cleavage with N,N-diethylaminoethylamine (DEAEA) gave satisfactory results. This allows the use of the chromophore as a temporary marker.
Sameiro, M,Gon?alves, T,Maia, Hernani L.S
p. 7775 - 7777
(2007/10/03)

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Chemical Properties

Melting Point: 147-149℃
Boiling Point: 322.5 °C at 760 mmHg
Flash Point:148.8 °C
Density: 1.008 g/cm³
Storage Temp.:Store at 0°C
Vapor Pressure: 0.000278mmHg at 25°C
Refractive Index: n20/D 1.44(lit.)
PSA: 64.63000
LogP: 2.48970

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