北京大学学报(自然科学版)

乙酰基取代的卓酮和卓酚酮化合物与芳醛缩合反应的研究

高文涛,郑卓,陈惠麟   

  1. 中科院大连化学物理研究所,大连,116023
  • 收稿日期:2000-06-26 出版日期:2001-03-20 发布日期:2001-03-20

Study on Synthesis and Reactions of Acetyl-substituted Troponoids With Aromatic Aldehyde

GAO Wentao,ZHENG Zhuo,CHEN Huilin   

  1. Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023
  • Received:2000-06-26 Online:2001-03-20 Published:2001-03-20

摘要: 为寻找具有生理活性的Troponoids,选择3-乙酰基卓酚酮1和2-乙酰基-7-甲胺基卓酮6与3,4,5-三甲氧基苯甲醛等取代醛反应得到缩合产物2~5,7~9;缩合产物3-(3,4,5-三甲氧基)肉桂酰基卓酚酮2和3-(3,4-亚甲二氧基)肉桂酰基卓酚酮4与羟氨和苯肼进行缩合成环得到苯乙烯基取代的缩杂环卓酮化合物10~13;化合物1与3,4,5-三甲氧基苯甲醛在原甲酸三乙酯和高氯酸存在下反应一步得到2-(3,4,5-三甲氧基)苯基-4,9-二氢环庚并吡喃-4,9-二酮14。以上化合物2~5,7~14的结构经光谱分析和元素分析予以证实。

关键词: 3-乙酰基卓酚酮, 2-乙酰基-7-甲胺基卓酮, 缩杂环卓酮化合物, 芳香醛, 合成

Abstract: 3-Acetyltropolone 1 reacted with 3, 4, 5-trimethoxybenzaldehyde, 4-hydroxy-3, 5-dimethoxyben-zaldehyde, piperonal and cinnamadehyde to afford respectively 3-(3, 4, 5-trimethoxy)cinnamoyltropolone 2, 3-(4-hydroxy-3, 5-dimethoxy)cinnamoyltropolone 3, 3-(3, 4-methylenedioxy)cinnamoyltropolone 4 and 3-(5-phenyl-2, 4-pentadieneyl)tropolone 5 .2-acetyl-7-methylaminotropolone 6 reacted with 3, 4, 5-trimethoxybenzaldehyde, 4-hydroxy-3, 5-dimethoxybenzaldehyde and 4-hydroxy-3, 4-dibromobenzalde-hyde to give 2-styrylsubstituted-7-methylaminotropolones 7, 8, 9. Compounds 2, 4 reacted with hydroxylamine to give 3-(3, 4, 5-trimethoxy)styryl-8H-cyclohept[d]isoxazol-8-one 10 and 3-(3, 4-methylenedioxy)styryl-8H-cyclohept[d]isoxazol-8-one 11. The reactions of 2, 4 with phenylhydrazine gave 1-phenyl-3-(3, 4, 5-trimethoxy)styryl-1, 8-dihydrocycloheptapyrazol-8-one 12 and 1-phenyl-3-(3, 4-methylenedioxy)styryl-1, 8-dihydrocyclo-heptapyrazol-8-one 13. Compound 1 reacted with 3, 4, 5-trimethoxybenzaldehyde in the presence of ethylorthoformate and perchloric acid to afford 2-(3, 4, 5-trimethoxyphenyl)-4, 9-dihydrocyclohepta [b]pyran-4, 9-dione 14. The structures of compounds 2~5, 7~14 were confirmed by spectral data and elemental analysis.

Key words: 3-acetyltropolone, 2-acetyl-7-methylaminotropone, condensation, heterocycle fused troponoids, aormatic aldehydes, synthesis

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