Flavors and fragrances have been composing the integral components of a broad range of consumer goods and even some kinds of pharmaceutical products. The wide application of these aroma chemicals significantly enhances the pressure of supplying to meet the increasing needs. With the development of modern chemical industry, many spices, those are only extracted from certain animals or plants before, can be prepared by chemical synthetic methods. Synthetic perfume has gradually replaced the dominant position of natural spices because of its many advantages such as pure fragrance, low price and mass production.