The present invention relates to a procedure for the production of myrtanal from ²-pinene epoxide, comprising as a minimum putting said epoxide in contact with a crystalline microporous catalyst having pores of diameter of at least 0.52 nm and having an empirical formula in dehydrated calcined form of H w (M w Ti x Sn y Zr z Si 1-w-x-and-z )O 2 , where M is at least one metal of valency +3 selected from among Al, B, Ga, Fe, Cr, and combinations thereof; w is a molar fraction of M having a value between 0 and 2(x+y+z); x is a molar fraction of titanium having a value between 0 and 0.06; y is a molar fraction of tin having a value between 0 and 0.06; z is a molar fraction of zirconium having a value between 0 and 0.064, and wherein at least one of the three values "x", "y" or "z" differs from zero. In the present invention it is preferable for the crystalline microporous catalyst to have pores of at least 0.52 nm and a crystalline structure having an x-ray diffractogram corresponding to a beta zeolite.