A　mild　three-component　method　for　the　synthesis　of　2-imino-1,2-dihydroquinoline　compounds　has　been　successfully　developed.　In　the　presence　of　CuCl,　various　terminal　alkynes,　sulfonyl　azides　and　2-aminobenzaldehydes　were　coupled.　When　changing　the　type　of　substrate　alkyne,　controlled　synthesis　of　dihydroquinoline　and　sulfonyl　amidine　compounds　were　achieved.