The reaction of an aromatic heterocycle with a proton is called a protonation. One of articles about this theory is 《Synthesis of chiral ferrocenylazines. Negishi cross-coupling or SNH reactions?》. Authors are Musikhina, A. A.; Utepova, I. A.; Serebrennikova, P. O.; Chupakhin, O. N.; Charushin, V. N..The article about the compound:Bromoferrocenecas:1273-73-0,SMILESS:Br[C-]12[Fe+2]3456789([C-]%10C6=C7C8=C9%10)C1=C3C4=C25).Synthetic Route of C10BrFe. Through the article, more information about this compound (cas:1273-73-0) is conveyed.
Preparation of new hetaryl-containing planar chiral ferrocene by a nucleophilic substitution of hydrogen in azines was performed using a lithium derivative of (S)-ferrocenyl-p-tolylsulfoxide as s nucleophilic reagent.
Compound(1273-73-0)Synthetic Route of C10BrFe received a lot of attention, and I have introduced some compounds in other articles, similar to this compound(Bromoferrocene), if you are interested, you can check out my other related articles.
Reference:
Thiazolidine – Wikipedia,
Thiazolidine – ScienceDirect.com