The present Invention relates to Derivatives of acid phenyl Ester with herbicide activity tetr\u00e1mico 3 - or agroqu\u00edmicamente acceptable salts thereof,And the use of this Compound to control weeds in crops.Claim 1: compounds of the General formula (1), or their Salts agroqu\u00edmicamente acceptable, in which c\u2081\u208b\u2084 X is Hydrogen, alkyl, cycloalkyl c\u2081\u208b\u2084 - haloalquilo, c\u2083\u208b\u2086 c\u2081\u208b\u2086 - alkoxy -,,- c\u2081\u208b\u2084 c\u2081\u208b\u2083 - alkoxy alkyl or Halogen, c\u2081\u208b\u2086 - haloalcoxi and c\u2081\u208b\u2084 is Hydrogen, alkyl, cycloalkyl c\u2083\u208b\u2086 haloalquilo c\u2081\u208b\u2084 -, -, c\u2081\u208b\u2086 - alkoxy -, c\u2081\u208b\u2083 c\u2081\u208b\u2084 alkyl alkoxy -,C\u2081\u208b\u2086 - haloalcoxi or Halogen W is c\u2081\u208b\u2084 Hydrogen, alkyl, cycloalkyl c\u2081\u208b\u2084 - haloalquilo, c\u2083\u208b\u2086 c\u2081\u208b\u2086 alkoxy -, -, - c\u2081\u208b\u2084 c\u2081\u208b\u2083 - alkoxy alkyl, c\u2081\u208b\u2086 - haloalcoxi, c\u2082\u208b\u2086 - alquenilo, c\u2082\u208b\u2086 - alquinilo,Halogen or phenyl, that is not replaced or which may optionally be substituted with one or more alkyl substituents selected regardless of c\u2081\u208b\u2083, c\u2081\u208b\u2084 - haloalquilo,- c\u2083\u208b\u2086 cycloalkyl Hydroxy, alkoxy, c\u2081\u208b\u2086 -, c\u2081\u208b\u2086 - haloalcoxi or Halogen u and V in each case together form a Ring of Seven members of the type t\u00b9 - t\u2074, Group of formulas (2),Where z represents an oxygen Atom, a Group - S (o) \u2099 - or group - N (or\u00b9) - n is 0, 1 or 2 r\u00b9 c\u2081\u208b\u2084 is Hydrogen, alkyl, or c\u2081\u208b\u2084 - haloalquilo c\u2081\u208b\u2084 - G Is alcanoilo HydrogenA group or a cation and outgoing L, where l is one of the radical Group of Formulae (3) R\u00b2 is c\u2081\u208b\u2084 alkyl or alkoxy alkyl c\u2081\u208b\u2083 - - c\u2081\u208b\u2084 r\u00b3 is c\u2081\u208b\u2084 alkyl r\u2074 is c\u2081\u20
