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Synthesis of bislactones catalysed by a Pd–dppb system |
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| Authors: | Giuseppe Vasapollo Antonio Scarpa Giuseppe Mele Ludovico Ronzini Bassam El Ali |
| Abstract: | Palladium acetate Pd(OAc)2] and 1,4‐bis(diphenylphosphino)butane (dppb) catalyse regioselective cyclocarbonylation of bisallyl derivatives of bisphenols affording seven‐membered ring bislactones in good yields. Double cyclocarbonylation reactions carried out using different conditions afforded bislactones with two different ring sizes (7–6 and 7–5‐membered). Copyright © 2000 John Wiley & Sons, Ltd. |
| Keywords: | carbonylation lactones bislactones |