abstract |
(57) [Summary] Formula I: Wherein X represents N or a group C—R 3 , Y represents O, S, SO, SO 2 or NR 4 , or XY represents S = N and X represents sulfur; Wherein the symbols R 1 , R 2 and hex have the same meanings as in claim 1], a method for producing this compound, a composition containing this compound and a herbicide thereof. Are disclosed. |