| 摘要 |
<p>Novel pyrazole derivatives of the formula I:
<CHEM>
wherein
R represents a lower alkyl group or a lower alkenyl group atoms which may be substituted by halogen atom,
X represents a halogen atom, a lower alkyl group, nitro group, cyano group, a lower alkylsulfonyl group or trifluoromethyl group,
n is an integer of 2 to 4,
Q represents hydrogen atom; an aralkyl group which may be substituted by halogen atom, nitro group, cyano group or a lower alkyl group; benzenesulfonyl group which may be substituted by a lower alkyl group or halogen atom; benzoyl group which may be substituted by a lower alkyl group or halogen atom; phenacyl group which may be substituted by a lower alkyl group or halogen atom; a lower alkyl group which may be substituted by halogen atom;
a lower alkenyl group which may be substituted by halogen atom; or a lower alkynyl group,
and a method for preparation of said derivatives, a selective berbicidal composition containing said derivatives as active ingredient,
as well as a method for controlling weeds using said derivatives. </p> |
