摘要 |
Novel trisubstituted benzoic acid intermediates which are useful in the preparation of certain herbicidal 2-(2,3,4-trisubstituted benzoyl)-1,3-cyclohexandediones. The intermediate benzoic acids of this invention have the following structural formula <IMAGE> wherein R6 is chlorine, C1-C4 alkoxy, C1-C4 alkylthio or hydroxy; n is the integer 0 or 2; and R7 is C1-C4 alkyl. |