名称:
Cyclization of 2-chloro-3-(1,4-oxocyclohexa-2,5-dienylideneamino)-1,4-dihydronaphthalene-1,4-diones into 6-chloro-10,12a-dihydroxy-7H,12aH-benzo[c]phenoxazin-5-ones
摘要:
2-Chloro-3-(4-oxocyclohexa-2,5-dienylideneamino)-1,4-dihydronaphthalene-1,4-diones maintained in the conc. sulfuric acid undergo cyclization affording in a high yield 6-chloro-10,12a-dihydroqD-7H,12aH-benzo[c]phenoxazin-5-ones whose structure is proved by XRD analysis.
DOI:
10.1134/s1070428013050012