Bhela, Irene preet published the artcileTritylamine as an Ammonia Surrogate in the Ugi Reaction Provides Access to Unprecedented 5-Sulfamido Oxazoles Using Burgess-type Reagents, SDS of cas: 104-03-0, the publication is Organic Letters (2021), 23(9), 3610-3614, database is CAplus and MEDLINE.
Starting from a wide range of ¦Á-acylamino amide substructures RNHC(O)CH(R1)NHC(O)R2 (R = pentyl, Bn, [3-(1H-1,3-benzodiazol-1-ylmethyl)phenyl]methyl, etc.; R1 = H, Me, n-Pr, hexyl; R2 = Me, Ph, (4-nitrophenyl)methyl, etc.) synthesized using tritylamine as an ammonia surrogate in the Ugi reaction, Burgess-type reagents R3N–S(O)2N+(CH2CH3)3 (R3 = C(O)OMe, C(O)OBn) enable cyclodehydration and afford unprecedented oxazole scaffolds I with four points of diversity, including a sulfamide moiety in the 5-position. The synthetic procedure employs readily available starting materials and proceeds smoothly under mild reaction conditions with good tolerance for a variety of functional groups, coming to fill a gap in the field of oxazole compounds
Organic Letters published new progress about 104-03-0. 104-03-0 belongs to catalysis-chemistry, auxiliary class Nitro Compound,Carboxylic acid,Benzene, name is 4-Nitrophenylacetic acid, and the molecular formula is C8H7NO4, SDS of cas: 104-03-0.
Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia