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Figure 7
Proposed mechanism for the benzyl alcohol Knoevenagel condensation over catalyst 2. Colour code: Fe purple, C grey, N blue and O red. Bonds to be removed (red dashed lines) and created (turquoise dashed lines) are shown.

IUCrJ
Volume 5| Part 5| September 2018| Pages 559-568
ISSN: 2052-2525
https://doi.org/10.1107/S2052252518007856