SYNTHESES OF TWO NEW UNICARBON-CHAIN BIS(BENZO-15-CROWN-5) COMPOUNDS

SYNTHESES OF TWO NEW UNICARBON-CHAIN BIS(BENZO-15-CROWN-5) COMPOUNDS

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摘要 Carbonyl bis(4'-benzo-15-erown-5) has been synthesized by heating the mixture of benzo-15-crown-5 and 4'-earboxybenzo-15-crawn-5 in polyphosphoric aeid(PPA), and bis(4'-benzo-15-crown-5) carbinol is obtained by reducing carbonyl bis(4'-benzo-15-crown-5) with sodium borahydride. A use ful method is provided to synthesize various types of symmetrical and unsymmetrical bis (crown ether)s. Carbonyl bis(4'-benzo-15-erown-5) has been synthesized by heating the mixture of benzo-15-crown-5 and 4'-earboxybenzo-15-crawn-5 in polyphosphoric aeid(PPA), and bis(4'-benzo-15-crown-5) carbinol is obtained by reducing carbonyl bis(4'-benzo-15-crown-5) with sodium borahydride. A use ful method is provided to synthesize various types of symmetrical and unsymmetrical bis (crown ether)s.

作者 Li LIN, Jin Liang GUO and Yong LI Department of Chemistry, Tsinghua University, Beijing, 100084

出处《Chinese Chemical Letters》 SCIE CAS CSCD 1991年第10期751-752,共2页 中国化学快报（英文版）

分类号 O6 [理学—化学]

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Chinese Chemical Letters

1991年第10期

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SYNTHESES OF TWO NEW UNICARBON-CHAIN BIS(BENZO-15-CROWN-5) COMPOUNDS

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