| 摘要 |
OF THE DlSCLOSURE There are disclosed novel compounds of the formulae: wherein n is 2, A, B, and C each are hydrogen, or lower alkyl with no pair of alkyls being on the same ring carbon, the sum of the carbon atoms being no more than 7; R1, R2 and R3 each are hydrogen or lower alkyl R1 and R2 together represent ?CH2?m wherein m is 2 to 6, the sum of the larger number of carbon atoms in either R1 or R2 plus R3 being no more than 10; R4 is lower alkyl or Rl and R4 together represent ?CH2?m; D, E and F each are hydrogen or a lower alkyl and no pair of alkyls is on the same ring carbon provided that at least one of D, E or F is not hydrogen and that the sum of the carbon atoms in D, E and F is no more than 7; T is a lower alkyl; U is hydrogen or a lower alkyl; and R3 is U when D is a propyl or butyl group and E, F, R and R2 are hydrogen. These compounds are useful as malodor counteractants. |
