Insect repellent compounds

Claim 2

A compound having the formula

Claim 4

3-position on the pyridine ring. S.D. 8. The compound of Claim S.D. 3 wherein R is -CH2CH2CH3, n is 3 and the ester moiety is substituted at the 3-position on the pyridine ring. S.D. 9. The compound of Claim S.D. 3 wherein R is -CH(CH3)CH2CH3, n is 3 and the ester moiety is substituted at the 3-position on the pyridine ring. S.D. 10. The compound of Claim S.D. 3 wherein R is -CH(CH3)CH2CH3, n is 3 and the ester moiety is substituted at the 4-position on the pyridine ring. S.D. 11. The compound of Claim S.D. 3 wherein R is -CH(CH3)CH2CH3, n is 3 and the ester moiety is substituted at the 2-position on the pyridine ring. S.D. 12. The compound of Claim S.D. 3 wherein R is -CH2CH(CH3)2, n is 3 and the ester moiety is substituted at the 4-position on the pyridine ring. S.D. 13. The compound of Claim S.D. 3 wherein R is -CH2CH(CH3)2, n is 3 and the ester moiety is substituted at the 2-position on the pyridine ring. S.D. 14. The compound of Claim S.D. 3 wherein R is -CH2CH2CH3, n is 3 and the ester moiety is substituted at the 2-position on the pyridine ring. S.D. 15. The compound of Claim S.D. 3 wherein R is -C(CH3)3, n is 3 and the ester moiety is substituted at the 2-position on the pyridine ring. S.D. 16. The compound of Claim S.D. 3 wherein R is -C(CH3)3, n is 3 and the ester moiety is substituted at the 3-position on the pyridine ring. S.D. 17. The compound of Claim S.D. 3 wherein R is -C(CH3)3, n is 3 and the ester moiety is substituted at the

Claim 5

4-position on the pyridine ring. S.D. 18. The compound of Claim S.D. 3 wherein R is -C(CH3)=CHCH3, n is 3 and the ester moiety is substituted at the 2-position on the pyridine ring. S.D. 19. The compound of Claim S.D. 3 wherein R is -C(CH3)=CHCH3, n is 3 and the ester moiety is substituted at the 3-position on the pyridine ring. S.D. 20. The compound of Claim S.D. 3 wherein R is -C(CH3)=CHCH3, n is 3 and the ester moiety is substituted at the 4-position on the pyridine ring. S.D. 21. The compound of Claim S.D. 3 wherein R is -C(CH3)=CH2, n is 3 and the ester moiety is substituted at the 3-position on the pyridine ring. S.D. 22. The compound of Claim S.D. 3 wherein R is -CH(CH3)2, n is 3 and the ester moiety is substituted at the 3-position on the pyridine ring. S.D. 23. A method of repelling insects from a locus to be protected therefrom, comprising applying to said locus an effective insect repelling amount of a compound having the formula in which R is C3-C5 alkyl or C3-C5 alkenyl and n is an integer from 1 to 3. S.D. 24. A method according to Claim S.D. 23 in which the compound is applied in an amount effective to repel mosquitos. S.D. 25. The method according to Claim S.D. 23 wherein R is -CH=C(CH3)2, n is 3 and the ester moiety is substituted at the 2-position on the pyridine ring. S.D. 26. The method according to Claim S.D. 23 wherein R is CH=C(CH3)2, n is 3 and the ester moiety is substituted at the 4-position on the pyridine ring. S.D. 27. The method according to Claim S.D. 23 wherein R is -CH2-CH(CH3)2, n is 3 and the ester moiety is substituted at the 3-position on the pyridine ring. S.D. 28. The method according to Claim S.D. 23 wherein R is -CH=CHCH3, n is 3 and the ester moiety is substituted at the 3-position on the pyridine ring. S.D. 29. The method according to Claim S.D. 23 wherein R is -CH2CH2CH3, n is 3 and the ester moiety is substituted at the 3-position on the pyridine ring. S.D. 30. The method according to Claim S.D. 23 wherein R is -CH(CH3)CH2CH3, n is 3 and the ester moiety is substituted at the 3-position on the pyridine ring. S.D. 31. The method according to Claim S.D. 23 wherein R is -CH(CH3)CH2CH3, n is 3 and the ester moiety is substituted at the 4-position on the pyridine ring. S.D. 32. The method according to Claim S.D. 23 wherein R is -CH(CH3)CH2CH3, n is 3 and the ester moiety is substituted at the 2-position on the pyridine ring. S.D. 33. The method according to Claim S.D. 23 wherein R is -CH2CH(CH3)2, n is 3 and the ester moiety is substituted at the 4-position on the pyridine ring. S.D. 34. The method according to Claim S.D. 23 wherein R is -CH2CH(CH3)2, n is 3 and the ester moiety is substituted at the 2-position on the pyridine ring. S.D. 35. The method according to Claim S.D. 23 wherein R is -CH2CH2CH3, n is 3 and the ester moiety is substituted at the 2-position on the pyridine ring. S.D. 36. The method according to Claim S.D. 23 wherein R is -C(CH3)3, n is 3 and the ester moiety is substituted at the 2-position on the pyridine ring. S.D. 37. The method according to Claim S.D. 23 wherein R is -C(CH3)3, n is 3 and the ester moiety is substituted at the 3-position on the pyridine ring. S.D. 38. The method according to Claim S.D. 23 wherein R is -C(CH3)3, n is 3 and the ester moiety is substituted at the 4-position on the pyridine ring. S.D. 39. The method according to Claim S.D. 23 wherein R is -C(CH3)=CHCH3, n is 3 and the ester moiety is substituted at the 2-position on the pyridine ring. S.D. 40. The method according to Claim S.D. 23 wherein R is -C(CH3)=CHCH3, n is 3 and the ester moiety is substituted at the 3-position on the pyridine ring. S.D. 41. The method according to Claim S.D. 23 wherein R is -C(CH3)=CHCH3, n is 3 and the ester moiety is substituted at the 4-position on the pyridine ring. S.D. 42. The method according to Claim S.D. 23 wherein R is -C(CH3)=CH2, n is 3 and the ester moiety is substituted at the 3-position on the pyridine ring. S.D. 43. The method according co Claim S.D. 23 wherein R is -CH(CH3)2, n is 3 and the ester moiety is substituted at the 3-position on the pyridine ring.