摘要 描述了2-(烯基氨基)-1,4-萘醌的锰(III)介导的氧化自由基反应。2-(烯丙基氨基)-1,4-萘醌与1,3-二羰基化合物的自由基反应为合成苯并[ f ]吲哚-4,9-二酮和苯并[ g ]喹啉-提供了一种新方法。5,10-二酮。该反应显示出高的化学选择性,这取决于所使用的溶剂和1,3-二羰基化合物。用1,3-二酮和β-酮酸酯在乙酸中选择性生成缩合产物苯并[ f ]吲哚。乙腈中的[5 + 1]-环化产物苯并[ g ]喹啉和四氢苯并[ g喹啉以高化学选择性产生。用丙二酸二乙酯专门生产[5 + 1]-环化产物,即相应的四氢苯并[ g ]喹啉。2-(乙烯基氨基)-1,4-萘醌与1,3-二羰基化合物的自由基反应可有效产生苯并[ g ]喹啉。 描述了2-(烯基氨基)-1,4-萘醌的锰(III)介导的氧化自由基反应。2-(烯丙基氨基)-1,4-萘醌与1,3-二羰基化合物的自由基反应为合成苯并[
Gold(III)-Catalyzed 1,4-Nucleophilic Addition: Facile Approach to Prepare 2-Amino-1,4-naphthalenedione and 6-Amino-5,8-quinolinedione Derivatives
作者:Shaozhong Wang、Chunhui Jiang
DOI:10.1055/s-0028-1088116
日期:2009.4
An efficient approach is developed to prepare different 2-amino-1,4-naphthalenedione and 6-amino-5,8-quinolinedione derivatives regioselectively by Au(III)-catalyzed 1,4-nucleophilic addition and subsequent oxidation. A wide variety of primary, secondary, and aromatic amines, as well as allylamine and 2-butynylamine are well tolerated under the mild conditions to give products in moderate to good yields.
Antitumor agents—CLXVII. Synthesis and structure-activity correlations of the cytotoxic anthraquinone 1,4-bis-(2,3-epoxypropylamino)-9,10-anthracenedione, and of related compounds
作者:Mary G. Johnson、Hiroshi Kiyokawa、Shohei Tani、Junko Koyama、Susan L. Morris-Natschke、Anthony Mauger、Margaret M. Bowers-Daines、Barry C. Lange、Kuo-Hsiung Lee
DOI:10.1016/s0968-0896(97)00097-7
日期:1997.8
side chains containing epoxides or halohydrins as the alkylating species showed greater activity than similar compounds with naphthoquinone or quinone skeletons. Compounds without these alkylating functionalities (e.g., with alkene or amino groups) were generally inactive. Hydroxy substitution on the planarskeleton in conjunction with alkylating side chains gave compounds with the most potent cytotoxic
Amino-quinone antipolymerants and methods of using
申请人:Ecolab USA Inc.
公开号:US11312793B2
公开(公告)日:2022-04-26
Described are methods and composition for inhibiting polymerization of a monomer (e.g., styrene) composition using an aminated quinone antipolymerant, such as an aminated benzoquinone or aminated naphthoquinone antipolymerant having one or more secondary or tertiary amine group(s). The aminated quinone antipolymerant can be used with little or no nitroxyl group containing antipolymerant yet still provide excellent antipolymerant activity in a monomer-containing composition.
AMINO-QUINONE ANTIPOLYMERANTS AND METHODS OF USING
申请人:Ecolab USA Inc.
公开号:US20200102408A1
公开(公告)日:2020-04-02
Described are methods and composition for inhibiting polymerization of a monomer (e.g., styrene) composition using an aminated quinone antipolymerant, such as an aminated benzoquinone or aminated naphthoquinone antipolymerant having one or more secondary or tertiary amine group(s). The aminated quinone antipolymerant can be used with little or no nitroxyl group containing antipolymerant yet still provide excellent antipolymerant activity in a monomer-containing composition.