Dioxolane acetal ring expansion during a sugar triflate displacement. Synthesis and assignment of diastereoisomer configuration of novel 9-crown-3 ether derivatives

DOI: 10.1016/S0040-4039(99)00492-X

Source and publish data:

Tetrahedron Letters p. 3629 - 3632 (1999)

Update date:2022-08-17

Topics:

Authors:

Popsavin, Velimir

Beri?, Ostoja

Popsavin, Mirjana

Csanádi, János

Vuji?, Djura

Hrabal, Richard

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Article abstract of DOI:10.1016/S0040-4039(99)00492-X

Treatment of 2,5:3,6-dianhydro-6-thio-4-O-trifluoromethanesulfonyl-L- talose ethylene acetal (5) with lithium benzoate in boiling DMF unexpectedly gave the 9-crown-3 ether derivatives 7 and 8 instead of the substitution product 6. The mechanism of the pro

Full text of DOI:10.1016/S0040-4039(99)00492-X

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Product name:2,5-anhydro-4-O-benzoyl-3,6-di-O-methanesulfonyl-L-idose ethylene acetal

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