Paper
NJC
Scheme 6 Proposed mechanism of the McMurry coupling of 4-oxo-4H-chromene-2-aldehyde.
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2
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Conclusion
In summary, we have developed highly chemoselective
titanium-induced McMurry couplings for the efficient synthesis
0
of 2,2 -(ethane-1,2-diyl)bis(4H-chromen-4-one)s from simple
starting materials, 4-oxo-4H-chromene-2-carbaldehydes. A ten-
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2 2
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8
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Conflicts of interest
There are no conflicts of interest to declare.
9
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Acknowledgements
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The authors thank the management of Dr Reddy’s Laboratories
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4708 | New J. Chem., 2021, 45, 4705ꢀ4709
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