110789-49-6Relevant articles and documents
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
Ragaite, Greta,Martynaitis, Vytas,Redeckas, Kipras,Voiciuk, Vladislava,Vengris, Mikas,Sackus, Algirdas
, p. 271 - 290 (2014/10/15)
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. ARKAT-USA, Inc.
SYNTHESIS OF 1-SUBSTITUTED 1,2,3,9a-TETRAHYDRO-9H-IMIDAZOINDOL-2-ONES
Shachkus, A. A.,Degutis, Yu. A.
, p. 1198 - 1202 (2007/10/02)
1-R-9,9,9a-Trimethyl-1,2,3,9a-tetrahydro-9H-imidazoindol-2-ones and the corresponding 2-methylene-2,3-dihydroindoles were obtained by the reaction of 2,3,3-trimethyl-3H-indole with a number of N-substituted chloroacetic acid amides and subsequent reaction of the resulting quartenary salts with bases.The kinetics of intramolecular cyclization of 1-(N-alkylcarbamoylethyl)-2-methylene-2,3-dihydroindoles under the influence of acetic acid were studied.Under the influence of strong protic acids 1-R-imidazoindol-2-ones undergo decyclization and are converted to 3H-indolium salts.
