“…The synthesis of tyrosine was first accomplished by Erlenmeyer and Lipp (133) who treated p-aminophenylalanine with nitrous acid. A second synthesis was carried out by Erlenmeyer, Jr. and Halsey (132). They condensed hippuric acid with p-oxybenzaldehyde in the presence of acetic anhydride and sodium acetate to form the lactimid.…”
“…The synthesis of tyrosine was first accomplished by Erlenmeyer and Lipp (133) who treated p-aminophenylalanine with nitrous acid. A second synthesis was carried out by Erlenmeyer, Jr. and Halsey (132). They condensed hippuric acid with p-oxybenzaldehyde in the presence of acetic anhydride and sodium acetate to form the lactimid.…”
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