An N-Heterocyclic Carbene-Catalyzed [8 + 3] Annulation of Tropone and Enals via Homoenolate Vijay Nair, Manojkumar Poonoth, Sreekumar Vellalath, Eringathodi Suresh, and Rajasekaran Thirumalai J. Org. Chem.; 2006; 71(23) pp 8964 - 8965; (Note) doi:10.1021/jo0615706
Dodge, R. P. (1964). "The Crystal and Molecular Structure of Tropone Iron Tricarbonyl". Journal of the American Chemical Society. 86 (24): 5429–5431. doi:10.1021/ja01078a013.
Randau, K. P.; Sproll, S.; Lerche, H.; Bracher, F. (1 May 2009). "Pernambucone, a new tropone derivative from Croton argyroglossum". Die Pharmazie. 64 (5): 350–351. doi:10.1691/ph.2009.7592. PMID19530449.
Bracher, Franz; Randau, Karina P.; Lerche, Holger (1 April 2008). "Crototropone, a new tropone derivative from Croton zehntneri". Fitoterapia. 79 (3): 236–237. doi:10.1016/j.fitote.2007.12.001. PMID18321658.
Fruchier, Alain; Rascol, Jean-Pierre; Andary, Claude; Privatt, Guy (1 January 1981). "A tropone derivative from orobanche rapum-genistae". Phytochemistry. 20 (4): 777–779. Bibcode:1981PChem..20..777F. doi:10.1016/0031-9422(81)85173-4.
Randau, K. P.; Sproll, S.; Lerche, H.; Bracher, F. (1 May 2009). "Pernambucone, a new tropone derivative from Croton argyroglossum". Die Pharmazie. 64 (5): 350–351. doi:10.1691/ph.2009.7592. PMID19530449.
Bracher, Franz; Randau, Karina P.; Lerche, Holger (1 April 2008). "Crototropone, a new tropone derivative from Croton zehntneri". Fitoterapia. 79 (3): 236–237. doi:10.1016/j.fitote.2007.12.001. PMID18321658.