Method for producing vinyl ether

摘要

A method for efficiently producing high purity vinyl ether represented by the following formula (1) from tertiary alcohol having a low reactivity comprising by reacting acetylene and a tertiary alcohol in the presence of a base using, as a solvent, a cyclic urea compound or glyme compound or mixture thereof:;
is provided.

主权项

1. A method for producing vinyl ether represented by the formula (1): from acetylene and a tertiary alcohol in the presence of a base, characterized in that; the tertiary alcohol is an alcohol represented by the formula (2): and that a reaction is carried out by using, as a solvent, a cyclic urea compound represented by the formula (3): wherein Z indicates wherein, in the above formulae (1) to (3), R1 to R3 independently indicate C1 or more hydrocarbon groups represented by the following formula (5) wherein X is a carbon atom, V and W independently indicate hydrogen or a substituted or unsubstituted C1 or more hydrocarbon group, provided that the case where the carbon directly bonded with X of V or W has a primary or secondary hydroxyl group in a cis arrangement with a hydroxyl group of the tertiary alcohol (2), as a substituent group is excluded, and Y indicates hydrogen or a substituted or unsubstituted C1 or more hydrocarbon group, provided that the case where the carbon of Y directly bonded with X has a primary or secondary hydroxyl group in a cis arrangement with a hydroxyl group of the tertiary alcohol (2) as a substituent group is excluded; or one group selected form a tertiary hydroxyl group, alkoxy group and alkyl sulfanyl group, two or more of R1 to R3 may be condensed to form a ring, provided that the case where two or more of R1 to R3 are condensed to form an aromatic ring is excluded, further, R4 to R9 independently indicate hydrogen or a C1 or more alkyl group or —(CH2CH2O)mR10, R10 indicates hydrogen or a C1 to C4 saturated or unsaturated hydrocarbon group, m is an integer of 1 or more, and n is an integer of 1 to 4.