Efficient and Convenient Preparation of γ-Unsecalactone

Abstract:

γ-Unsecalactone was prepared efficiently via the free radical addition reaction with acrylic acid and n-octanol as raw materials. An improved process which used Dean-Stark trap with adding anhydrous Na₂SO₄ as desiccant was developed. Through the orthogonal experiments about the dosages of di-t-butyl peroxide(DTBP) and zinc bromide (ZnBr₂), the optimal reaction conditions were as follows:n(DTBP): n(acrylic acid) = 0.160, n(ZnBr₂): n(acrylic acid) = 0.050. The yield of γ-unsecalactone based on the optimal reaction conditions reached 71%.

• Periodical: Advanced Materials Research (Volumes 554-556)
• Pages: 840-843
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.554-556.840
• Online since: July 2012
• Authors: Wan Dong, Chen Zhang, Li Yi Ye, Jing Yang, You Yu Shen, Song Tu
• Keywords: Dean-Stark Trap, Desiccant, Preparation, Γ-Unsecalactone

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