Palladium-catalyzed reaction of 4'-iodobenzocrown ethers with acetylenes. Convenient synthesis of alkyl-substituted benzocrown ethers and bis(benzocrown ether)s via alkynl-substituted benzocrown ethers.
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概要
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4′-Iodobenzo-15-crown-5 and -18-crown-6 were alkynylated by heptyne, propargyl alcohol, 1,7-octadiyne and acetylene in good yields with use of Pd(PPh<SUB>3</SUB>)<SUB>2</SUB>Cl<SUB>2</SUB> and Cul as catalysts. The latter two acetylenes gave bis(crown ether)s in one step. Hydrogenation of the alkynylated benzocrown ethers gave 4′-heptyl, 4′-(3-hydroxypropyl)benzocrown ethers and bis(benzocrown ether)s connected with ethylene or octamethylene linkage.
- 公益社団法人 日本化学会の論文
著者
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Wada Fumio
Department Of Endocrinology Faculty Of Medicine Kagawa Medical University
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MATSUDA Tsutomu
Department of Chemistry and Chemical Engineering, Faculty of Technology, Kanazawa University
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Kikukawa Kiyoshi
Department Of Biological And Environmental Chemistry Kinki University
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Abe Akito
Department of Organic Synthesis, Faculty of Engineering, Kyushu University
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