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Synthesis of sulfur and nitrogen analogues of monooxo crown ethers |
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| Authors: | Kenji Matsushima Yohji Nakatsuji Norio Kawamura Mitsuo Okahara |
| Abstract: | Sulfur or nitrogen analogues of monooxo crown ethers were prepared via intramolecular cyclization of the corresponding thia or aza oligoethylene glycol carboxylmethyl ethers by using benzenesulfonyl chloride in the presence of alkali metal carbonates. |
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