[Shadow]

What is the longest chain of a domino reaction, i.e. what is the maximum number of reactions achieved in a domino manner?

[OrgXemProf]

See: Tietze, L. F.; Brasche, G; Gericke, K. "Domino Reactions in Organic Synthesis", Wiley:New York, 2006. Somewhere within this book's 631 pages resides the answer to your question.

[Shadow]

I am not able to find the book. Any other suggestions?

[phth]

Try to find any book on polymer chemistry. 

[Shadow]

I am interested in intramolecular ones.

[kriggy]

Try to find any book on polymer chemistry.

I dont think that polymerization counts as domino reaction

[OrgXemProf]

For a "minireview" of domino reactions, see: Enders, D.; Grondal, C.; Huettl, M. R. M. Angew. Chem., Int. Ed. Engl. 2007, 46, 1570-1581, with many ;pertinent literature references.

[Mellitic]

I dont think that polymerization counts as domino reaction

Depolymerization is an intramolecular reaction, so you could argue that the thermal depolymerization of high molecular weight PTFE would be the longest domino reaction (I prefer the term cascade reaction).  It would have to be PTFE because a lot of other polyolefins undergo side reactions during depolymerization.