Abstract
This review described the preparation of 2- chloroquinoline-3-carbaldehyde derivatives 18
through Vilsmeier-Haack formylation of N-arylacetamides and the use of them as a key intermediate
for the preparation of 2-(piperazin-1-yl) quinoline-3-carbaldehydes. The synthesis of the 2-
(piperazin-1-yl) quinolines derivatives was explained through the following chemical reactions:
acylation, sulfonylation, Claisen-Schmidt condensation, 1, 3-dipolar cycloaddition, one-pot
multicomponent reactions (MCRs), reductive amination, Grignard reaction and Kabachnik-Field’s
reaction.
Keywords:
2-chloroquinoline-3-carbaldehyde, 2-(piperazin-1-yl) quinoline-3-carbaldehydes benzoimidazole, Kabachnik- Field’s reaction, Vilsmeier-Haack, reactivity, 1, 3-dipolar cycloaddition, MCRs.
Graphical Abstract
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