Owing to its biodegradable and non-toxic nature, glycerol, the main byproduct in the production of biodiesel fuel, is being actively investigated as a green reaction medium for synthetic organic chemistry. A huge number of synthetic transformations have been conducted in glycerol in recent years, showing most of them similar or even superior efficiency and selectivity than those performed in conventional petroleum-based organic solvents. Herein, an overview on the most recent advances reached in the field is presented. Short Running Title: Synthetic organic chemistry in glycerol

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