“…18 A number of catalysts for the conversion of LA to GVL have been reported in the literature. 13,[19][20][21][22][23] In general the catalytic systems for GVL synthesis from LA consist of noble metal catalysts (Ru, Au, Pt, Pd) and non-noble metal catalytic systems (Cu, Ni). Ru/C is, by far, the most-reported catalyst for this reaction 24 and has shown outstanding performance in the aqueous phase at mild temperature and pressure (130 °C, 12 bar H 2 ).…”