Su, Ja-An published the artcileCarbon-13 NMR studies of quinolines and isoquinolines. II. Chlorine-nitrogen interactions and N-oxide effects, SDS of cas: 70810-23-0, the main research area is NMR carbon quinoline isoquinoline.
The 13C NMR shifts were assigned for chloro-, dichloro-, and chloromethylquinolines and -isoquinolines and some of their N-oxides. Cl substituent chem. shifts are reported for α, ortho, meta, para, and peri positions. Consistent patterns were observed for the para and peri positions, a vinylogous ortho pattern is reported and the additivity of the substituent chem. shifts demonstrated. The steric and N lone pair contributions which modify the normal Cl substituent chem. shifts, were determined and these contributions shown to be additive. Large upfield shifts were observed for the carbons ortho and para to the N-oxide group. Substituent chem. shifts are essentially the same for the N-oxides as for the parent heterocycles and are additive except where the substituent is ortho to the N-oxide moiety in which case substantial interactions are involved.
Organic Magnetic Resonance published new progress about NMR (nuclear magnetic resonance). 70810-23-0 belongs to class isoquinoline, name is 1,5-Dichloroisoquinoline, and the molecular formula is C9H5Cl2N, SDS of cas: 70810-23-0.
Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem