An O-(N-alkoxy-pyridinecarboximidoyl)-phosphate is represented by the following formula:
wherein X is a halogen atom, a lower alkyl group, a lower acyloxy group. a trifluoromethyl group or a nitro group; Y is an oxygen atom or a sulfur atom; R is a lower alkyl group; n is an integer of 0 to 3; and Z1 and Z2 are each a lower alkoxy group, a lower alkylthio group, a phenyl group which may be substituted by a lower alkyl group, a phenoxy group, a haloalkoxy group or a lower alkylamino group.
The compound of formula (I) is useful as an active ingredient of insecticides or acaricides and is produced by reacting an N-alkoxy-pyridinecarboximidic acid having the formula (A):
wherein X, R and n are as defined above with a phosphoric halide having the formula (B):
wherein Hal is a halogen atom and Y, Z, and Z. are as defined above in the presence of an alkaline material.
O-(N-烷氧基
吡啶羧
酰亚胺基)-
磷酸酯由下式表示:
其中 X 是卤素原子、低级烷基、低级酰氧基、三
氟甲基或硝基;Y 是氧原子或
硫原子;R 是低级烷基;n 是 0 至 3 的整数;Z1 和 Z2 分别是低级烷氧基、低级烷
硫基、可被低级烷基取代的苯基、苯氧基、卤代烷氧基或低级烷
氨基。
式(I)化合物可用作
杀虫剂或
杀螨剂的活性成分,由具有式(A)的 N-烷氧基
吡啶羧
酰亚胺酸反应制得:
其中 X、R 和 n 如上文所定义,与具有式(B)的
磷卤化物反应制得:
其中 Hal 为卤素原子,Y、Z 和 Z.如上文定义,在碱性物质存在下反应制得。