Cahours, Auguste (1848). "Note sur le furfurol" [Note on furfurol]. Annales de Chimie et de Physique. 3rd series (in French). 24: 277–285. (English translation: Cahours, A. (1848). "Observations on furfurol". The Chemical Gazette. 6: 457–460.)
Tilden, William A., ed. (1886). Watts' Manual of Chemistry: Theoretical and Practical. Vol. II: Chemistry of Carbon-Compounds or, Organic Chemistry (2nd ed.). Philadelphia, Pennsylvania, USA: P. Blakiston, Son, & Co. pp. 379–380.
Peters, Fredus N. (1936). "The Furans: Fifteen Years of Progress". Industrial & Engineering Chemistry. 28 (7): 755–759. doi:10.1021/ie50319a002. ISSN0019-7866.
J. W. Döbereiner (1832). "Ueber die medicinische und chemische Anwendung und die vortheilhafte Darstellung der Ameisensäure" [On the medical and chemical application and the profitable preparation of formic acid]. Annalen der Pharmacie (in German). 3 (2): 141–146. doi:10.1002/jlac.18320030206. From p. 141: "Ich verbinde mit diese Bitte noch die Bemerkung, … Bittermandelöl riechende Materie enthält, … " (I join to this request also the observation that the formic acid which is formed by the simultaneous reaction of sulfuric acid and manganese peroxide with sugar and which contains a volatile material that appears oily in an isolated condition and that smells like a mixture of cassia and bitter almond oil … )
Limpricht, H. (1870). "Ueber das Tetraphenol C4H4O" [On tetraphenol C4H4O]. Berichte der Deutschen Chemischen Gesellschaft (in German). 3: 90–91. doi:10.1002/cber.18700030129. From p. 90: "Die Ansicht, dass die Pyroschleimsäure eine der Salicylsäure ähnliche Constitution besitzt, macht das Auftreten des Tetraphenols bei der Destillation der pyroschleimsauren Salze wahrscheinlich." (The belief that 2-furoic acid has a structure similar to salicylic acid makes probable the presence of tetraphenol [furan] during the distillation of salts of 2-furoic acid.) That is, just as heating salts of salicylic acid produces phenol, so heating salts of 2-furoic acid should produce an analog of phenol containing 4 carbon atoms.
In 1877, Baeyer published a series of papers on furfural, as he tried to determine its structure.
Brownlee, Harold J.; Miner, Carl S. (1948). "Industrial Development of Furfural". Industrial & Engineering Chemistry. 40 (2): 201–204. doi:10.1021/ie50458a005. ISSN0019-7866.
Cai, Charles M.; Zhang, Taiying; Kumar, Rajeev; Wyman, Charles E. (2014). "Integrated furfural production as a renewable fuel and chemical platform from lignocellulosic biomass". Journal of Chemical Technology & Biotechnology. 89 (1): 2–10. Bibcode:2014JCTB...89....2C. doi:10.1002/jctb.4168.
Cai, Charles M.; Zhang, Taiying; Kumar, Rajeev; Wyman, Charles E. (2014). "Integrated furfural production as a renewable fuel and chemical platform from lignocellulosic biomass". Journal of Chemical Technology & Biotechnology. 89 (1): 2–10. Bibcode:2014JCTB...89....2C. doi:10.1002/jctb.4168.
Cahours, Auguste (1848). "Note sur le furfurol" [Note on furfurol]. Annales de Chimie et de Physique. 3rd series (in French). 24: 277–285. (English translation: Cahours, A. (1848). "Observations on furfurol". The Chemical Gazette. 6: 457–460.)
Limpricht, H. (1870). "Ueber das Tetraphenol C4H4O" [On tetraphenol C4H4O]. Berichte der Deutschen Chemischen Gesellschaft (in German). 3: 90–91. doi:10.1002/cber.18700030129. From p. 90: "Die Ansicht, dass die Pyroschleimsäure eine der Salicylsäure ähnliche Constitution besitzt, macht das Auftreten des Tetraphenols bei der Destillation der pyroschleimsauren Salze wahrscheinlich." (The belief that 2-furoic acid has a structure similar to salicylic acid makes probable the presence of tetraphenol [furan] during the distillation of salts of 2-furoic acid.) That is, just as heating salts of salicylic acid produces phenol, so heating salts of 2-furoic acid should produce an analog of phenol containing 4 carbon atoms.
In 1877, Baeyer published a series of papers on furfural, as he tried to determine its structure.
Peters, Fredus N. (1936). "The Furans: Fifteen Years of Progress". Industrial & Engineering Chemistry. 28 (7): 755–759. doi:10.1021/ie50319a002. ISSN0019-7866.
Brownlee, Harold J.; Miner, Carl S. (1948). "Industrial Development of Furfural". Industrial & Engineering Chemistry. 40 (2): 201–204. doi:10.1021/ie50458a005. ISSN0019-7866.
J. W. Döbereiner (1832). "Ueber die medicinische und chemische Anwendung und die vortheilhafte Darstellung der Ameisensäure" [On the medical and chemical application and the profitable preparation of formic acid]. Annalen der Pharmacie (in German). 3 (2): 141–146. doi:10.1002/jlac.18320030206. From p. 141: "Ich verbinde mit diese Bitte noch die Bemerkung, … Bittermandelöl riechende Materie enthält, … " (I join to this request also the observation that the formic acid which is formed by the simultaneous reaction of sulfuric acid and manganese peroxide with sugar and which contains a volatile material that appears oily in an isolated condition and that smells like a mixture of cassia and bitter almond oil … )
