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ISSUE 12

Year 2007, Month 12 (Section Full Articles, Page 2487)

Combination of ionic liquid [bmim]PF₆ with boron trifluoride etherate as an efficient catalytic system for the glycosylation of α-tocopherol and naphthotocopherol

A. Yu. Spivak, O. V. Knyshenko, O. V. Ivanova, M. I. Mallyabaeva, E. S. Murtazina, I. Yu. Ponedel´kina, and V. N. Odinokov

The use of a combination of ionic liquid [bmim]PF₆ with boron trifluoride etherate as the catalyst in the glycosylation of α-tocopherol and chromanol of vitamin К₁ (naphthotocopherol) allowed us to obtain β-glycosides in high yield when β-anomer of peracetylated D-glucose was used. In addition, usually inactive α-anomers of peracetylated D-glucopyranose and D-galactopyranose were involved in this reaction.

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