The easily accessible and multi-functionalized 5,8-dimethoxy-6,7-dihydroxy methyl-1,4-dihydro-1,4-methanonaphthalene (1) has been utilized as the basic building material to synthesize the symmetric bis-methanonaphthalene-fused crown ethers 14a–d (BMN-16-crown-4, BMN-22-crown-6, BMN-28-crown-8, and BMN-34-crown-10), that are constructed based on the connection between the α,β-bis-benzylic carbon atoms of diol 1 and oligoethylene glycols (9a–d) via two synthetic routes keyed upon the method of Williamson ether synthesis.

中文翻译：

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外围改性冠醚。双5,8-二甲氧基-1,4-亚甲基萘稠合冠醚的合成

易于使用且多功能化的5,8-二甲氧基-6,7-二羟基甲基-1,4-二氢-1,4-甲基萘（1）已被用作基础建筑材料来合成对称的双-甲基萘-稠合冠醚14a – d（BMN-16-crown-4，BMN-22-crown-6，BMN-28-crown-8和BMN-34-crown-10）构成，它们基于二醇1和低聚乙二醇（9a – d）的α，β-双苄基碳原子通过两种以威廉姆森醚合成方法为关键的合成路线进行合成。