This post should have been written as a statement, not a question, my mistake. I have tried too many things to list. Diffrent reaction times, tempratures under vaccuum no vaccuum, diffrent sources of safrole. All chem. lab grade. Refer to ex.1 and 24 for more detail. This patent IS BOGUS and anyone who can thinks they can prove otherwise I would like to hear from you. I'm not interested in any thing but personal experience, all patent claims or internet refrences are not true! I must have tried over 50 times with diffrent variables and never came close to the claim. I guess the real question is why a japanese lab spent thousands of dollars on this false claim.