The application of structure-activity relationships has led to a better understanding of the olfactory recognition process. Especially, when computer assisted, this approach will become more valuable in providing insights into the search for new fragrance chemicals. However, the abundant availability of α- and α throughout the world makes it only natural to continue to look for ways to convert them into novel odorants.
Both the pinenes can be converted to a common intermediate, cis-Pinane , for the past 15 years, has provided our industry with a new route to Iinalool and geraniol.
cis-Pinane  can also be pyrolyzed to dihydromyrcene 2], now produced in multi-ton quantities to meet the growing need for dihydromyrcenol  (Scheme 1).