THE SYNTHESIS OF NOVEL POLYCYCLIC HETEROCYCLIC RING-SYSTEMS VIA PHOTOCYCLIZATION .16. [1]BENZOTHIENO[2',3'4,5] THIENO [2,3-C]QUINOLINE AND 1]BENZOTHIENO[2',3'4,5]THIENO[2,3-C]NAPHTHO[1,2-F] QUINOLINE
Jk. Luo et al., THE SYNTHESIS OF NOVEL POLYCYCLIC HETEROCYCLIC RING-SYSTEMS VIA PHOTOCYCLIZATION .16. [1]BENZOTHIENO[2',3'4,5] THIENO [2,3-C]QUINOLINE AND 1]BENZOTHIENO[2',3'4,5]THIENO[2,3-C]NAPHTHO[1,2-F] QUINOLINE, Journal of heterocyclic chemistry, 32(2), 1995, pp. 659-664
The synthesis of two previously unknown polycyclic heterocyclic ring s
ystems via photocyclization is described. The unequivocal assignment o
f their proton and carbon spectra was achieved by utilizing two-dimens
ional nmr techniques.