Lin, McCarty and Liu have authored an interesting review in Angewandte titled "The enzymology of Organic Transformations" (DOI). It is of course well known that synthetic organic reactions exist with a biological enzymatic counterpart but this review exposes the true scale, especially for the so-called named reactions. Reactions described in the review are the Claisen condensation, Michael addition ,Morita-Baylis-Hillman Reaction[, Henry reaction and the Ugi reaction (!).

In the case of Pictet-Spengler Condensation it is sad to learn that the Pictet-Spenglerases are apparently named after the frauds who stole their invention in the first place. Dieckmann cyclases and Diels-Alderases share their fate.