It is a common heterocyclic compound, the iron-catalyst compound, Ferrocenecarboxaldehyde, cas is 12093-10-6 its synthesis route is as follows.
General procedure: A 100mL dry, nitrogen purged round bottom flask was charged with the carbonyl compound in dry tetrahydrofuran. Freshly prepared Cp2TiMe2 in toluene was added. The reaction mixture was heated to 80°C for 10h and was monitored by thin layer chromatography. Insoluble precipitate was separated, the solvent evaporated under reduced pressure, and the residue obtained was purified by column chromatography.
12093-10-6, In the field of chemistry, the synthetic routes of compounds are constantly being developed and updated. I will also mention this compound in other articles.,12093-10-6 ,Ferrocenecarboxaldehyde, other downstream synthetic routes, hurry up and to see
Reference：
Article; Singh, Jatinder; Ghosh, Sanjib; Deb, Mayukh; Elias, Anil J.; Journal of Organometallic Chemistry; vol. 818; (2016); p. 85 – 91;,
Iron Catalysis in Organic Synthesis | Chemical Reviews
Iron Catalysis in Organic Synthesis: A Critical Assessment of What It Takes To Make This Base Metal a Multitasking Champion