| 主权项 |
1. A purification method of an aldehyde compound, comprising:
a step of neutralizing a reaction solution containing an aldehyde compound by adding water and a base compound to the reaction solution; and a step of distilling the neutralized reaction solution, wherein the reaction solution is obtained by reacting a compound represented by the following Formula (a1) or (a2) with hydrogen and carbon monoxide in the presence of a metal compound of groups 8 to 10 and a phosphorus compound, the phosphorus compound is represented by the following Formula (R1O)3P, and the base compound is at least one kind selected from among carbonate and hydrogen carbonate of metals of group I on the periodic table and carbonate and hydrogen carbonate of metals of group II on the periodic table, (in Formula (a1), X represents a hydrogen atom, a cyano group, an aldehyde group, or a —CH═NR group; R represents a hydrogen atom, an alkyl group having 1 to 6 carbon atoms, or an aryl group; and in Formulae (a1) and (a2), n represents 0, 1, or 2),
(R1O)3P (in the formula, a plurality of R1s may be the same as or different from each other, and represents an alkyl group having 1 to 16 carbon atoms that may have a substituent or an aryl group having 6 to 16 carbon atoms that may have a substituent). |
