A Review on Catalytic Terpene Transformation over Heterogeneous Catalyst

Heterogeneous catalysis and their application in industrial-scale organic synthesis of fine chemicals are greatly facilitated by catalysis and further on by catalyst recovery and recycles to fits most “principles of green chemistry. In acid media, terpenoids generally undergoes various transformations. The terpenoid transformations include various liquid Bronsted and Lewis Acids, Acid clays, Hetropoly acids, Zeolites, Ionexchange resins etc.Montmorillonite clays were generally the most popular catalyst of pinenes isomerisation. The heterogeneous catalysis by H3PW12O40 (hetropoly acid) exhibit higher catalytic activity in various reactions of terpenoids such as hydration, acetoxylation, and isomerisation.Metalloporphyrins, the porphyrin complexes are efficient catalyst in the oxygenation of terpenes. Zeolite played a role in heterogeneous catalysis. Cobalt containing MCM-41 Zeolite Catalyst was used as a heterogeneous catalyst for the liquid-phase aerobic oxidation of isolongifoline. The synthesis of nopyl with strong acidic cation exchange resin Amberlyst 15 and the ion exchange of isolongifoline from longifoline were carried out by using macroporous strong acid type cationic exchange resin as catalyst. .