Nickel (o)-catalyzed Cycloaddition of Ethoxyethyne with Carbon Dioxide to 4,5-diethoxy-α-pyrone
- 1 June 1989
- journal article
- research article
- Published by Taylor & Francis Ltd in Synthetic Communications
- Vol. 19 (9-10), 1575-1581
- https://doi.org/10.1080/00397918908051053
Abstract
Ni(O)-phosphine(L) complexes (L=tri-n-alkylphosphines and bis(diphenylphosphino)butane) catalyzed the cycloaddition of ethoxyethyne and carbon dioxide to afford 4,5-diethoxy-α-pyrone regioselectively.Keywords
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