Isomerization of ¦Á-pinene oxide in the presence of methyltrioxorhenium(VII)

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• 作者：Sofia M. Bruno^a ; Martyn Pillinger^a ; Fritz E. Kü ; hn^b ; Isabel S. Gonç ; alves^a ; Anabela A. Valente^a ; ^atav@ua.pt
• 关键词：Methyltrioxorhenium ; Acid catalysis ; Isomerization ; ¦Á-Pinene oxide ; Campholenic aldehyde
• 刊名：Catalysis Communications
• 出版年：2013
• 出版时间：5 May, 2013
• 年：2013
• 卷：35
• 期：Complete
• 页码：40-44
• 全文大小：375 K

文摘

The catalytic performance of methyltrioxorhenium(VII) (MTO) has been investigated for the first time in the isomerization of ¦Á-pinene oxide (PinOx) into campholenic aldehyde (CPA). The high isomerization activity of MTO is coupled with high selectivity to CPA: CPA yield of up to 87 % (100 % conversion) was obtained by using ¦Á,¦Á,¦Á-trifluorotoluene as solvent at 15 ¡ãC. Catalyst recycling is possible in a relatively simple fashion by using MTO coupled to an appropriate ionic liquid. The catalytic application of MTO in the isomerization of PinOx versus the integrated epoxidation-isomerization process of the conversion of ¦Á-pinene into CPA is discussed.