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a) In situ 1H NMR spectra of C5 and C3 protons in Ptriaz during the CC3R synthesis in deuterated chloroform at room temperature. b) In situ 1H NMR spectra of C5 and C3 protons in Ptriaz in deuterated chloroform at room temperature. c) Chemical shift of C5 protons in Ptriaz against time. Blue line: without CC3R, black line: with CC3R crystallizing process. d) The integration of C5 and C3 proton peaks in Ptriaz. Blue line: without CC3R, black line: with CC3R crystallizing process.
