| abstract |
PROCEDURE FOR PREPARING XANTHENON-ILLICAL PHOSPHORIC AND PHOSPHONIC ESTERS OF FORMULA (I), WHERE R1 AND R2 ARE INDEPENDENTLY HALOGEN, ALCOHYL, HALOHYL, NITRO, ALCOHYLSULFINYL, ALCOHYLSULFON; K AND M ARE 0, 1, 2 O 3; Q IS OXYGEN OR SULFUR; AND IT IS OXYGEN OR SULFUR; R IS ACOHYL; R4 IS ALCOHYL, ALCOXY, ALCOHYLTIO, AMINO, ALCOHYLAMINE OR DIALCOHYLAMINE; A AND B ARE EACH INDEPENDENTLY OXYGEN OR SULFUR, WITH THE CONDITION THAT IF R1 IS ALCOXY, THEN A OR B MUST BE SULFUR. IT CONSISTS OF REACTING A COMPOUND OF FORMULA (II), WHERE R1, R2, K, M, Q E AND HAVE THE MEANINGS ALREADY INDICATED, WITH A COMPOUND OF FORMULA (III), WHERE R3, R4, A AND B HAVE THE MEANINGS ALREADY INDICATED. FOR USE AS INSECTICIDES. |