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Fluorinated Aromatic Amino Acids. 1,2 II. 2- and 3-Trifluoromethyltyrosines. Hydrolytic Stability of the Trifluoromethyl Group on the Aromatic Nucleus

✍ Scribed by FILLER, ROBERT; NOVAR, HERMAN

Book ID: 118749567
Publisher: American Chemical Society
Year: 1961
Tongue: English
Weight: 520 KB
Volume: 26
Category: Article
ISSN: 0022-3263
DOI: 10.1021/jo01066a022

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## Abstract magnified image The cyclization mechanism for the title compound (**2**) reacting with one‐carbon fragment reagents or nitrous acid to afford heterobicyclic compounds 6‐amino‐3‐substituted‐1,2,4‐triazolo[3,4‐__f__][1,2,4]triazin‐8(7__H__)‐ones (**3a∼d**) or 6‐amino‐1,2,3,4‐tetrazolo[5,