56414-89-2Relevant articles and documents
Protecting-Group-Free Amidation of Amino Acids using Lewis Acid Catalysts
Sabatini, Marco T.,Karaluka, Valerija,Lanigan, Rachel M.,Boulton, Lee T.,Badland, Matthew,Sheppard, Tom D.
supporting information, p. 7033 - 7043 (2018/05/04)
Amidation of unprotected amino acids has been investigated using a variety of ‘classical“ coupling reagents, stoichiometric or catalytic group(IV) metal salts, and boron Lewis acids. The scope of the reaction was explored through the attempted synthesis of amides derived from twenty natural, and several unnatural, amino acids, as well as a wide selection of primary and secondary amines. The study also examines the synthesis of medicinally relevant compounds, and the scalability of this direct amidation approach. Finally, we provide insight into the chemoselectivity observed in these reactions.
Chiral primary-tertiary diamine catalysts derived from natural amino acids for syn-aldol reactions of hydroxy ketones
Li, Jiuyuan,Luo, Sanzhong,Cheng, Jin-Pei
supporting information; experimental part, p. 1747 - 1750 (2009/08/07)
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Design of an organocatalyst for the enantioselective Diels-Alder reaction with α-acyloxyacroleins
Ishihara, Kazuaki,Nakano, Kazuhiko
, p. 10504 - 10505 (2007/10/03)
We have realized the first enantioselective organocatalytic Diels-Alder reaction between α-substituted acroleins, such as α-acyloxyacroleins, and not only cyclic but also acyclic dienes. α-Acyloxyacroleins are useful as synthetic equivalents of α-haloacro