Synthesis of new diheteroarylcarbazoles: a facile and simple route of 3,6-di(pyrazol-4-yl)carbazoles

dc.contributor.author	Meesala, Ramu
dc.contributor.author	Nagarajan, Rajagopal
dc.date.accessioned	2022-03-27T08:40:51Z
dc.date.available	2022-03-27T08:40:51Z
dc.date.issued	2006-10-23
dc.description.abstract	A short and facile route to the synthesis of new 3,6-di(pyrazol-4-yl)carbazoles is reported. Dipyrazolylcarbazoles were synthesized in two steps from 3,6-diacetylcarbazoles through a Vilsmeier reaction which led to the formation of carbazolyl-β-chlorovinyl aldehydes, followed by cyclization with hydrazine hydrate. The reaction of the Vilsmeier reagent with hydrazones of diacetylcarbazoles yielded the corresponding pyrazole dicarbaldehydes in good yields. © 2006 Elsevier Ltd. All rights reserved.
dc.identifier.citation	Tetrahedron Letters. v.47(43)
dc.identifier.issn	00404039
dc.identifier.uri	10.1016/j.tetlet.2006.08.087
dc.identifier.uri	https://www.sciencedirect.com/science/article/abs/pii/S0040403906017059
dc.identifier.uri	https://dspace.uohyd.ac.in/handle/1/11474
dc.subject	β-Chlorovinylaldehydes
dc.subject	Diheteroarylcarbazoles
dc.subject	Dipyrazolylcarbazoles
dc.subject	Hydrazone cyclization
dc.subject	Vilsmeier reagent
dc.title	Synthesis of new diheteroarylcarbazoles: a facile and simple route of 3,6-di(pyrazol-4-yl)carbazoles
dc.type	Journal. Article
dspace.entity.type

Now showing 1 - 1 of 1