反应详情

Thus, 5-fluoro-3,4-dihydroquinazolin-4-one (2 g) was reacted with triphenylphosphine and carbon tetrachloride to give 5-fluoro-4-chloroquinazoline (1.34 g); NMR Spectrum: (CDCl3) 7.4–7.5 (m, 1H), 7.9–8.0 (m, 2H), 9.1 (s, 1H); and