Conjugate addition

Dimedone synthesis

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Conjugate addition followed by intramolecular acylation

Base catalysed ester hydrolysis, protonation and thermal decarboxylation.

X. Jin, W. Xu, J. Yang, J. Lu, Y. Fu, L. Xie, Q. Zhu and W. Dong, Tetrahedron Lett., 2015, 56, 6287–6289.