104945-87-1Relevant academic research and scientific papers
SYNTHESIS OF 2R,3S,4R-DIHYDROXYPROLINE FROM D-RIBONOLACTONE
Dho, J. C.,Fleet, G. W. J.,Peach, J. M.,Prout, K.,Smith, P. W.
, p. 3203 - 3204 (1986)
A synthesis of 2R,3S,4R-dihydroxyproline is described in which an azide is introduced into C-2 position of D-ribonolactone with retention of configuration.
Synthesis of highly functionalized chiral nitriles by radical fragmentation of β-hydroxy azides. Convenient transformation of aldononitriles into 1,4- and 1,5-iminoalditols
Hernandez, Rosendo,Leon, Elisa I.,Moreno, Pilar,Riesco-Fagundo, Concepcion,Suarez, Ernesto
, p. 8437 - 8444 (2007/10/03)
The synthesis of highly functionalized nitriles by an alkoxyl radical fragmentation of cyclic β-hydroxy azides is described. The alkoxyl radicals were generated by reaction of the alcohols with (diacetoxyiodo)benzene and iodine under mild conditions compa
An efficient and concise entry to (-)-4,5-dihydroxy-d-threo-l norvaline. Formal synthesis of clavalanine
Ariza, Jesus,Font, Josep,Ortuno, Rosa M.
, p. 1979 - 1982 (2007/10/02)
The title amino acid (2) has been synthesized for the first time in a seven-step sequence from D-ribonolactone, in 20% overall yield. Since the N-carbamoyl derivative of (2) in its y-lactone form has been used to prepare clavalanine, a formal total synthe
Synthesis of (2R,3S,4R)-3,4-Dihydroxyproline from D-Ribonolactone; an Approach to the Synthesis of Polyfunctionalised D-Amino Acids from Sugar Lactones. X-Ray Molecular Structures of 2-Azido-3,4-O-(R)-benzylidene-2-deoxy-D-ribono-1,5-lactone, 2-Azido-2-deoxy-D-ribono-1,4-lactone, and ...
Baird, Peter D.,Dho, Jonathan C.,Fleet, George W. J.,Peach, Josephine M.,Prout, Keith,Smith, Paul W.
, p. 1785 - 1792 (2007/10/02)
A general approach to the synthesis of polyfunctionalised amino acids from sugar lactones, in wich nucleophilic displacement by azide ion of O-trifluoromethanesulphonyl esters adjacent to the lactone carbonyl is the key step, is discussed and is exemplified by the synthesis of the D-amino acid (2R,3S,4R)-3,4-dihydroxyproline from d-ribonolactone; unexpectedly, displacement of a triflate by azide in the C-2 position of ribonolactone occurs with retention of configuration.The X-ray crystal structures of 2-azido-3,4-O-(R)-benzylidene-2-deoxy-D-ribono-1,5-lactone, 2-azido-2-deoxy-D-ribono-1,4-lactone, and (2R,3S,4R)-3,4-dihydroxyproline are reported.I.r. spectroscopy does not discriminate reliably between 1,4-and 1,5-lactones, and X-ray crystallography is necessary to provide reliable structural information in this area.
