73538-53-1Relevant articles and documents
Phosphorus pentoxide for amide and peptide bond formation with minimal by-products
Erapalapati, Venkataramana,Hale, Umatai A.,Madhavan, Nandita
supporting information, (2019/11/21)
Phosphorus pentoxide and DMAP are used for amide bond formation from carboxylic acids and amines. Dipeptides and amides have been synthesized using this reagent in 42–77% yields and >99% ees. The protocol is attractive as it occurs at ambient temperature, the formation of organic by-products is minimal and the reagent can be readily quenched using water. Furthermore, excellent enantioselectivities are observed without the use of harsh triazole based additives.
Enantioselective Synthesis of erythro-β-Hydroxy-L-histidine, the Pivotal Amino Acid of Bleomycin-Fe(II)-O2 Complex
Owa, Takashi,Otsuka, Masami,Ohno, Masaji
, p. 83 - 86 (2007/10/02)
erythro-β-Hydroxy-L-histidine, a novel amino acid constituent of bleomycin, has been synthesized enantioselectively via the reaction of (N-pyruvylideneglycyl-D-phenylalaninato)copper(II) with imidazole-4-carbaldehyde.
