An efficient procedure for the synthesis of spiro [3H-indole-3,4' (1'H) pyrano [2,3-C] pyrrole]-5'-carbonitriles using solid inorganic supports and microwave activation

Article abstract of DOI:10.1080/00397919908086235

Microwave irradiation accelerates the Michael condensation of 3- dicyanomethylene-2H-indole-2-one with 2-pyrrolidone/N-methyl-2-pyrrolidone (i) adsorbed on neutral alumina in 'dry media' (ii) using absolute ethanol as energy transfer medium. 3-Dicyanomethylene-2H-indol-2-one was synthesized under microwave irradiation using indole-2,3-dione and malononitrile. The results were compared with those obtained following the classical method. The advantages obtained by the use of microwave irradiation are demonstrated.

Full text of DOI:10.1080/00397919908086235

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Synthetic Communications: An
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An Efficient Procedure for the
Synthesis of Spiro (3H-Indole-3,4′
(1′H)pyrano[2,3-C]pyrrole]-5′-
carbonitriles Using Solid Inorganic
Supports and Microwave Activation
Anshu Dandia a , Harshita Taneja a , Rajive Gupta b & Satya
Paul b
a Department of Chemistry, University of Rajasthan, Jaipur,
302 004, India
b Department of Chemistry, University of Jammu, Jammu,
180 004, India
Version of record first published: 17 Sep 2007.
To cite this article: Anshu Dandia, Harshita Taneja, Rajive Gupta & Satya Paul (1999):
An Efficient Procedure for the Synthesis of Spiro (3H-Indole-3,4′ (1′H)pyrano[2,3-
C]pyrrole]-5′-carbonitriles Using Solid Inorganic Supports and Microwave Activation, Synthetic
Communications: An International Journal for Rapid Communication of Synthetic Organic
Chemistry, 29:13, 2323-2335
To link to this article: http://dx.doi.org/10.1080/00397919908086235
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