Certain formamidine dithiophosphates and phosphonates and their use as insecticides

Abstract

Compounds having the formula ##STR1## in which R.sub.1 is lower alkyl or lower alkoxy, R.sub.2 is lower alkoxy or methylthio-substituted lower alkoxy, and R.sub.3 is ##STR2## R.sub.4 and R.sub.5 are lower alkyl, m is 1 or 2 and n is 0 or an integer from 1 to 4. The compounds have utility as insecticides and acaricides.

Description

Claims

1. A compound having the formula ##STR20## in which R.sub.1 is lower alkyl or lower alkoxy, R.sub.2 is lower alkoxy, or methylthio - substituted lower alkoxy, m is 1 or 2 and n is 0 or an integer from 1 to 4.

2. A compound according to claim 1 in which R.sub. is lower alkyl.

3. A compound according to claim 2 in which R.sub.1 is ethyl.

4. A compound according to claim 1 in which R.sub.1 is lower alkoxy.

5. A compound according to claim 4 in which R.sub.1 is methoxy.

6. A compound according to claim 4 in which R.sub.1 is ethoxy.

7. A compound according to claim 1 in which R.sub.2 is lower alkoxy.

8. A compound according to claim 7 in which R.sub.2 is methoxy.

9. A compound according to claim 7 in which R.sub.2 is ethoxy.

10. A compound according to claim 7 in which R.sub.2 is isopropoxy.

11. A compound according to claim 7 in which R.sub.2 is sec.-butoxy.

12. A compound according to claim 1 in which R.sub.2 is methylthioethoxy.

13. A compound according to claim 1 in which R.sub.1 is lower alkyl and R.sub.2 is lower alkoxy.

14. A compound according to claim 13 in which R.sub.1 is ethyl and R.sub.2 is ethoxy.

15. A compound according to claim 1 in which R.sub.1 and R.sub.2 are both lower alkoxy.

16. A compound according to claim 15 in which R.sub.1 and R.sub.2 are both ethoxy.

17. A compound according to claim 1 in which n is 3.

18. A compound according to claim 1 in which R.sub.1 is ethyl, R.sub.2 is methoxy, m is 1 and n is 3.

19. A compound according to claim 1 in which R.sub.1 is ethyl, R.sub.2 is ethoxy, m is 1 and n is 3.

20. A compound according to claim 1 in which R.sub.1 and R.sub.2 are both ethoxy, m is 1 and n is 3.

21. A compound according to claim 1 in which R.sub.1 is ethyl, R.sub.2 is isopropoxy, m is 1 and n is 3.

22. A compound according to claim 1 in which R.sub.1 is ethyl, R.sub.2 is sec.-butoxy, m is 1 and n is 3.

23. A method for controlling insects comprising applying to the nsect or the habitat thereof an insecticidally effective amount of a compound having the formula ##STR21## in which R.sub.1 is lower alkyl or lower alkoxy, R.sub.2 is lower alkoxy or methylthio-substituted lower alkoxy, m is 1 or 2 and n is 0 or any integer from 1 to 4.

24. A method according to claim 23 in which R.sub.1 is lower alkyl.

25. A method according to claim 24 in which R.sub.1 is ethyl.

26. A method according to claim 23 in which R.sub.1 is lower alkoxy.

27. A method according to claim 26 in which R.sub.1 is methoxy.

28. A method according to claim 26 in which R.sub.1 is ethoxy.

29. A method according to claim 23 in which R.sub.2 is lower alkoxy.

30. A method according to claim 29 in which R.sub.2 is methoxy.

31. A method according to claim 29 in which R.sub.2 is ethoxy.

32. A method according to claim 29 in which R.sub.2 is isopropoxy.

33. A method according to claim 29 in which R.sub.2 is sec.-butoxy.

34. A method according to claim 23 in which R.sub.2 is methylthioethoxy.

35. A method according to claim 23 in which R.sub.1 is lower alkyl and R.sub.2 is lower alkoxy.

36. A method according to claim 35 in which R.sub.1 is ethyl and R.sub.2 is ethoxy.

37. A method according to claim 23 in which R.sub.1 and R.sub.2 are both lower alkoxy.

38. A method according to claim 37 in which R.sub.1 and R.sub.2 are both ethoxy.

39. A method according to claim 23 in which n is 3.

40. A method according to claim 23 in which R.sub.1 is ethyl, R.sub.2 is ethoxy, m is 1 and n is 3.

41. A method according to claim 23 in which R.sub.1 is ethyl, R.sub.2 is isopropoxy, m is 1, and n is 3.

42. A method according to claim 23 in which R.sub.1 is ethoxy, R.sub.2 is ethoxy, m is 1 and n is 3.

43. An insecticidal composition comprising:

a. an insecticidally effective amount of a compound having the formula ##STR22## in which R.sub.1 is lower alkyl or lower alkoxy, R.sub.2 is lower alkoxy or methylthio-substituted lower alkoxy, m is 1 or 2 and n is 0 or an integer from 1 to 4, and (b) an inert carrier.