Abstract
New chemical approaches were adopted for the synthesis of biologically important coumarins utilizing cyclohexane-1,3-dione derivatives as novel scaffold which were prepared from acetone and ethyl acrylate following our previous report. The stepwise strategies of aromatization, dehydrogenation, and demethylative cyclization were followed for coumarins synthesis from cyclohexane-1,3-dione derivatives. This work reports the first time cyclohexyl iodide was used for the demethylative cyclization reaction of \(\upbeta , \upbeta \)-diaryl acrylates for 4-arylcoumarins synthesis.
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Acknowledgments
Authors are grateful to Director CSIR-IHBT for providing necessary facilities during the course of the work and financial assistance from CSIR Project ORIGIN, CSC0108. D.S. (SRF), C.B.R. (JRF), A.K.S. (SRF) gratefully acknowledge to CSIR or UGC, New Delhi, India for research fellowships.
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Sharma, D., Reddy, C.B., Shil, A.K. et al. Cyclohexyl iodide promoted approach for coumarin analog synthesis using small scaffold. Mol Divers 17, 651–659 (2013). https://doi.org/10.1007/s11030-013-9461-y
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DOI: https://doi.org/10.1007/s11030-013-9461-y