Bulletin of the Chemical Society of Japan p. 2710 - 2712 (1990)
Update date:2022-08-16
Topics:
Yamada, Masaki
Nakamura, Yoshio
Kuroda, Shigeyasu
Shimao, Ichiro
Though the chlorination of an N,N'-annelated phenanthrolinedione, 3,6,7,9-tetrahydro-5H-<1,4>diazepino<1,2,3,4-lmn><1,10>phenanthroline-3,9-dione, gave 2,9-dichloro-1,10-phenanthroline, another dione, 3,5,6,8-tetrahydropyrazino<1,2,3,4-lmn><1,10>phenanthroline-3,8-dione, did not.It demonstrated a simultanous introduction of two chlorine substituents to non-substituted 1,10-phenanthroline via only the former intermediate.
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