| Title |
Synthesis, crystal structures, and laser flash photolysis of 3-nitro-7a,15-methanonaphtho[1',2':6,7][1,3]oxazepino[3,2-a]indole derivatives / |
| Authors |
Ragaitė, Greta ; Martynaitis, Vytas ; Redeckas, Kipras ; Voiciuk, Vladislava ; Vengris, Mikas ; Šačkus, Algirdas |
| DOI |
10.3998/ark.5550190.p008.727 |
| Full Text |
|
| Is Part of |
Arkivoc.. Gainesville, FL : ARKAT USA. 2014, vol. 2014, iss. 5, p. 271-290.. ISSN 1551-7004. eISSN 1551-7012 |
| Keywords [eng] |
indoles, spiro[benzo[f]chromene-3,2′-indoles] ; [1,3]oxazepino[3,2-a]indoles ; single crystal X-ray analysis ; flash photolysis |
| Abstract [eng] |
The condensation of 1-substituted 9,9a-dihydro-1H-imidazo[1,2-a]indol-2(3H)-ones with 2- hydroxy-6-nitro-1-naphthaldehyde afforded 1′-carbamoylmethyl-8-nitrospiro[benzo[f]chromene- 3,2′-indole] derivatives, which underwent intramolecular cyclisation to derivatives of 3-nitro- 7a,15-methanonaphtho[1′,2′:6,7][1,3]oxazepino[3,2-a]indole upon treatment with a strong base. Laser excitation of the obtained uncoloured molecules of trans- and cis-3-nitro-7a,15-methanonaphtho[ 1′,2′:6,7][1,3]oxazepino[3,2-a]indole induced the formation of short-lived photogenerated species, which absorb in the visible spectrum and thermally revert to the ground state on a nanosecond time scale. |
| Published |
Gainesville, FL : ARKAT USA |
| Type |
Journal article |
| Language |
English |
| Publication date |
2014 |
| CC license |
|
