Verma, Rajiv Kumar ; Verma, Girijesh K. ; Raghuvanshi, Keshav ; Singh, Maya Shankar (2011) An expedient route to highly functionalized 2H-chromene-2-thiones via ring annulation of β-oxodithioesters catalyzed by InCl3 under solvent-free conditions Tetrahedron, 67 (3). pp. 584-589. ISSN 0040-4020
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Official URL: http://doi.org/10.1016/j.tet.2010.11.055
Related URL: http://dx.doi.org/10.1016/j.tet.2010.11.055
Abstract
A convenient and one-pot synthesis of 3-aroyl/heteroaroyl-2H-chromene-2-thiones and benzo[f]2H-chromene-2-thiones has been developed by the condensation of β-oxodithioesters and salicylaldehydes/α-hydroxynaphthaldehydes in the presence of indium trichloride under solvent-free conditions. The reaction is operationally facile, readily scalable, and offers rapid entry into differentially substituted chromene-2-thione scaffolds.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| ID Code: | 119665 |
| Deposited On: | 16 Jun 2021 05:51 |
| Last Modified: | 16 Jun 2021 05:51 |
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