P. Magnus, L. Diorazio, T. Donohoe, M. Giles, P. Pye, James G. Tarrant, S. Thom
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New strategy for the synthesis of the taxane diterpenes: formation of the eight-membered B-ring of taxol by semi-pinacol rearrangement
Solvolysis of the neopentyl triflates 14, 25 and 32 resulted in ring expansion of a seven-membered ring into the eight-membered ring required for the synthesis of the taxanes diterpenoids.