1. For a recent perspective on green chemistry, see: Li CJ, Anastas PT. Green chemistry: Present and future. Chem Soc Rev, 2012, 41: 1413–1414 and references therein
2. This review does not include the distinctly different sub-field of decarboxylative C-C forming reactions and excludes simple decarbonylation reactions that do not involve the formation of a new C-C bond. Furthermore, we apologize in advance to those whose efforts have not been recognized here.
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