Synthesis of a Pentacoordinate Germanium Compound Possessing a γ-Lactone and a Dative-Bonding Carboxylic Acid
- 1 January 2021
- journal article
- research article
- Published by The Japan Institute of Heterocyclic Chemistry in HETEROCYCLES
- Vol. 103 (1), 465-475
- https://doi.org/10.3987/com-20-s(k)9
Abstract
A pentacoordinate germanium compound consisting of a spirocyclic dilactone-like structure was synthesized. Both radical and oxidation synthetic routes afforded the diphenylgermanium dicarboxylic acid compound. Then, mono-dearylation by acid treatment successfully delivered a hypercoordinate germane product. X-Ray crystallographic analysis revealed that the product adopted trigonal bipyramidal geometry in which a gamma-lactone ring and a dative-bonding carboxylic acid moiety were incorporated.Keywords
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