BENZALDEHYDE HAVING SUBSTITUENT GROUP AT 2,3 AND 4 POSITION AND IT DERIVATIVE

摘要

PURPOSE: To obtain a new compound useful as a producing intermediate for agrichemicals and medicines, functional materials and organic chemicals. ;CONSTITUTION: A compound of formula I [R¹ to R³ are lower alkyl; (n) is 0 or 2], e.g. 3-methoxy-2-methyl-4-methylthiobenzaldehyde. The compound of formula I is obtained by reacting 1-alkyl-2-alkoxy-3-alkylthiobenzene derivative of formula II with 1,1-dichloromethylmethyl ether in the presence of a Lewis acid such as AlCl₃ in a solvent such as methylene chloride.;COPYRIGHT: (C)1994,JPO&Japio