离子液体介导并促进了室温下一锅绿色合成新的异恶唑基二氢- 1h -吲哚-4(5H)- 1衍生物

Nagi Reddy Modugu, Praveen Kumar Pittala
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引用次数: 2

摘要

摘要:本文报道了一种温和、廉价、快速、高效、环保的方法,以4-氨基-3-甲基-5-苯乙烯基异恶唑、二美酮和2-氯苯乙酮为原料,以1-甲基咪唑四氟硼酸盐([HMIm]BF4)为特定离子液体,在室温下进行无催化剂一锅三组分反应,合成了新型异恶唑二氢- 1h -吲哚-4(5H)- 1。本方法的重要方面是:使用绿色溶剂,反应时间短,无催化剂,与广泛的底物相容性,易于回收,反应介质的可重复使用,收率高。
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Ionic liquid mediated and promoted one-pot green synthesis of new isoxazolyl dihydro-1H-indol-4(5H)-one derivatives at ambient temperature
Abstract We report a mild, inexpensive, fast, highly efficient, and eco-friendly protocol for the synthesis of new isoxazolyl dihydro-1H-indol-4(5H)-ones by a catalyst-free, one-pot three-component reaction of 4-amino-3-methyl-5-styrylisoxazoles, dimedone, and 2-chloroacetophenones under 1-methyl imidazolium tetraflouroborate ([HMIm]BF4) as task-specific ionic liquid at room temperature. The important aspects of the present methodology are: use of green solvent, short reaction time, catalyst free, compatibility with wide range of substrates, ease of recovery, reusability of reaction medium, and good yields.
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Cogent Chemistry
Cogent Chemistry CHEMISTRY, MULTIDISCIPLINARY-
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