Substituted cyclic keto - - C 2 phenyl novel formula (I) The present invention relates to enol, wherein, have the meanings mentioned in the description W, X, Y, and the CKE Z. I also relates to their use as herbicides and pesticides, as well as preparation of enol - substituted cyclic keto - the C 2 phenyl Further, the present invention. [Formula 1]本発明は式(I)の新規なC2フェニル-置換環状ケト-エノールに関し、式中、W、X、Y、Z及びCKEは明細書中で挙げた意味を有する。本発明はまた該C2フェニル-置換環状ケト-エノールの製造法ならびに有害生物防除剤及び除草剤としてのそれらの使用にも関する。【化1】