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2. b Palframan MJ, Pattenden G (2014). The versatility of furfuryl alcohols and furanoxonium ions in synthesis. Chem. Commun. 50:7223-7242
3. c Merino P, Tejero T, Delso JI, Matute R (2007). Furan oxidations in organic synthesis: recent advances and applications. Curr. Org. Chem. 11:1076-1091
4. Reviews: (a) Mahajan PS, Humne VT, Mhaske SB (2017). Achmatowicz reaction: a versatile tool in bioactive natural product synthesis. Curr. Org. Chem. 21:503-545
5. b Deska J, Thiel D, Gianolio E (2015). The Achmatowicz rearrangement - oxidative ring expansion of furfuryl alcohols. Synthesis 47:3435-3450