Rouhi-Saadabad, Hamed published the artcileA One-Pot, fast, and efficient amidation of carboxylic acids, α-amino acids and sulfonic acids using PPh3/N-chlorobenzotriazole system, SDS of cas: 1772-76-5, the publication is Phosphorus, Sulfur and Silicon and the Related Elements (2015), 190(10), 1703-1714, database is CAplus.
Triphenylphosphine (PPh3)/N-chlorobenzotriazole (NCBT), and amine (primary and secondary aliphatic amines and also substituted anilines) in CH2Cl2 efficiently converted carboxylic acids, α-amino acids, and sulfonic acids to the corresponding amides and sulfonamides at room temperature Good to excellent yields, inexpensive, and fast reaction conditions are the important features of this procedure.
Phosphorus, Sulfur and Silicon and the Related Elements published new progress about 1772-76-5. 1772-76-5 belongs to catalysis-chemistry, auxiliary class Benzenes, name is (E)-3-(3-Nitrophenyl)acrylic acid, and the molecular formula is C9H7NO4, SDS of cas: 1772-76-5.
Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia