2-Methoxyethyl-cyclododecenyl ether, process for its production and its use in the production of 2-methoxyethyl-cyclododecyl ether

摘要

2-methoxyethyl-cyclododecenyl ether (I) is of interest as a precursor for the saturated ether, the fragrance 2-methoxyethyl-cyclododecyl ether (II), which is obtained by catalytic hydrogenation of (I) in high purity and with good fragrance quality. To prepare 2-methoxyethyl-cyclododecenyl ether, 2-methoxyethanol and an orthoformate of the general formula (IV) IMAGE in which R1 is C1-C4-alkyl radicals are used, at temperatures from 50 to 250 ° C. in the presence of an acidic catalyst with cyclododecanone , optionally in the presence of a C1-C4 alkanol as solvent, and distills off the low-boiling compounds formed in the process.