| abstract |
The present inventionn n n (a) reacting a compound of formula (II) with a compound of formula ROCH 3 , wherein R is a metal,n n n n n n n n (b) reacting the product of (a) with a compound of formula (III)n n n n n n n n Method for producing a pesticide intermediate of formula (I)n n n n n n n n A process for preparing the compound of formula (II) and a process for obtaining the compound of formula (II), the compound of formula (II) in almost pure form, when R 1 , R 2 , R 3 and R 4 are all hydrogen , To a method of obtaining the compound of formula (II) in nearly pure form. |