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The concept of sustainable chemistry is gaining tremendous attention in the scientific community as it addresses the increasing challenges of resource scarcity, environmental pollution and rising demand for electricity. The principles of green chemistry are a cornerstone of sustainability that link economic growth and eco-efficiency in terms of cost-benefit analysis (1). A very convenient way to implement greener chemistry concepts is to consider chemocatalyzed steps in the synthetic route to tackle the requirements of high selectivities, quantitative yields and high atom economy. Moreover, the large variety of new transformations allows formation of complex structures in a single step (e.g. reductive couplings, hydrofunctionalizations, etc.). The usually high functional group tolerance allows for prot ...