King, Sandra M. published the artcileDevelopment of a method for the N-arylation of amino acid esters with aryl triflates, Application of 4-(1H-Pyrrol-1-yl)phenol, the publication is Organic Letters (2016), 18(16), 4128-4131, database is CAplus and MEDLINE.
A general method for the N-arylation of amino acid esters with aryl triflates is described. Both α- and β-amino acid esters, including Me, tert-Bu, and benzyl esters, are viable substrates. Reaction optimization was carried out by design of experiment (DOE) anal. using JMP software. The mild reaction conditions, which use t-BuBrettPhos Pd G3 or G4 precatalyst, result in minimal racemization of the amino acid ester. This method is the first synthetic application of the t-BuBrettPhos Pd G4 precatalyst. Mechanistic studies show that the observed erosion in enantiomeric excess is due to racemization of the amino acid ester starting material and not of the product.
Organic Letters published new progress about 23351-09-9. 23351-09-9 belongs to alcohols-buliding-blocks, auxiliary class Pyrrole,Benzene,Alcohol, name is 4-(1H-Pyrrol-1-yl)phenol, and the molecular formula is C10H9NO, Application of 4-(1H-Pyrrol-1-yl)phenol.
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