Syntheses of Mintlactone and Isomintlactone

This review summarizes the papers dealing with the synthesis of mintlactone and isomintlactone, two natural monoterpenic lactones found in mint oils. 1 Introduction 2 Syntheses 2.1 Transformation of Monoterpenes 2.1.1 From (+)-Menthofuran 2.1.2 From (+)-Citronellal 2.1.3 From (-)-Isopulegol 2.1.4 From Geraniol and Nerol 2.2 From 4-Methyl Cyclohexanone 2.3 From Cyclohexenone Derivatives 2.4 From 3-Methyl Cyclohexanone 3 Conclusion.