One-pot multi-component synthesis of pyrimido[4,5-b]indoles in solvent-free condition
Pyrimido[4,5-b]indole derivatives 4 were synthesized from a one-pot three-component reaction of aryl aldehyde 1, oxindole 2 and urea/thiourea 3 in solvent-free condition using ytterbium(III) triflate as catalyst.
Majumder, Swarup,Bhuyan, Pulak J.
p. 993 - 996
(2014/08/05)
Synthesis of functional 2-substituted 4-phenyl-9H-pyrimido[4,5-b]indoles
A method was developed for the synthesis of 2-oxo-4-phenyl-2,3-dihydro-9H-pyrimido[4,5-b]indole as well as of 2-chloro- and 2-nitramino-4-phenylpyrimido[4,5-b]indoles. The replacement of the chlorine atom in 2-chloropyrimidoindole gave rise to a number of
Borovik,Shkurko
p. 2129 - 2133
(2007/10/03)
DIHYDROPYRROLO- AND DIHYDROPYRIMIDOINDOLES
Aromatic aldehydes react with indole-2-carboxylic acid azides under acid catalysis conditions to give the corresponding 3-(α-halobenzyl)indoles, which react with aliphatic and aromatic amines to give the corresponding aminobenzylindoles.The latter undergo
Vlasova, M. I.,Kogan, N. A.
p. 711 - 715
(2007/10/02)
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