Fabrication of Se/C using carbohydrates as biomass starting materials: an efficient catalyst for regiospecific epoxidation of β-ionone with ultrahigh turnover numbers. Issue 19 (7th September 2018)

• Record Type: Journal Article
• Authors: Yang, Yufan; Fan, Xin; Cao, Hongen; Chu, Sainan; Zhang, Xu; Xu, Qing; Yu, Lei
• Is Part Of: Catalysis science & technology. Volume 8:Issue 19(2018)
• Page Start: 5017
• Page End: 5023
• Publication Date: 2018-09-07
• Subjects: Catalysis -- Periodicals; 541.395
• DOI: 10.1039/c8cy01413b
• Languages: English
• ISSNs: 2044-4753

Abstract

Abstract : Fabrication of Se/C catalyst from glucose as the biomass starting materials was reported for the first time, affording an efficient and regiospecific epoxidation of β-ionone. Abstract : Using carbohydrates as a cheap biomass carbon source, an efficient heterogeneous Se/C catalyst was easily fabricated for the regiospecific epoxidation of β-ionone with ultrahigh catalyst turnover numbers (TON, up to 3.9 × 10 5 ). The reaction was performed in ethyl acetate and produced ( E )-4-(2, 2, 6-trimethyl-7-oxabicyclo[4.1.0]heptan-1-yl)but-3-en-2-one, an important chemical in flavor development and a key intermediate in the total synthesis of abscisic acid. This work not only provides a relatively green and regiospecific method for β-ionone epoxidation, but also represents a breakthrough in Se catalyst development, making full use of Se resources to obtain a much higher catalyst TON compared with conventional homogeneous organoselenium catalysts.