Fabrication, identification and application of Fe3O4 bonded nicotinic acid-sulfonic acid chloride as a retrievable magnetic nanostructured catalyst for the one-pot synthesis of 1-carbamato-alkyl-2-naphthols
Abstract In the presented work, Fe3O4 bonded nicotinic acid-sulfonic acid chloride (Fe3O4@nicotinic acid @sulfonicacid chloride), as a magnetic reusable catalyst, was prepared by a simple procedure. The identification of Fe3O4@nicotinic acid @sulfonicacid chloride was studied by Fourier transform infrared spectroscopy, X-ray diffraction, thermal gravimetric analysis, scanning electron microscopy
摘要 在提出的工作中,通过简单的程序制备了作为磁性可重复使用的催化剂的,Fe 3 O 4键合的烟酸-磺酸氯(Fe 3 O 4烟酸@磺酸氯)。通过傅里叶变换红外光谱,X射线衍射,热重分析,扫描电子显微镜,能量色散X射线分析和振动样品磁强分析法研究了Fe 3 O 4烟酸@磺酰氯的鉴定。铁3 O 4烟酸磺酸氯化物被用作一种高效且非均相的催化剂,用于在无溶剂条件下以高收率一锅合成一些1-氨基甲酰基烷基-2-萘酚衍生物。简单的后处理,高产率,短的反应时间和催化剂的容易回收是该工作的一些优点。 图形概要
Solvent-free one-pot synthesis of 1-carbamatoalkyl-2-naphthols by a tin tetrachloride catalyzed multicomponent reaction
作者:Min Wang、Qing L. Wang、Shuang Zhao、Xin Wan
DOI:10.1007/s00706-013-0927-5
日期:2013.7
AbstractAn efficient one-potsynthesis of 1-carbamatoalkyl-2-naphthols using tin tetrachloride as a catalyst for the three-component condensation reaction of 2-naphthol, aldehydes, and carbamates under thermal, solvent-free conditions is described. This new approach has advantages such as mild conditions, short reaction time, high yield, simple work-up, and an inexpensive catalyst. Graphical Abstract
Preparation of methyl/benzyl(2-hydroxynaphthalen-1-yl)(aryl)methylcarbamate derivatives using magnesium hydrogen sulfate
作者:Majid Ghashang
DOI:10.1007/s11164-013-1044-0
日期:2014.4
A new approach to the synthesis of methyl/benzyl(2-hydroxynaphthalen-1-yl)(aryl)methylcarbamate derivatives based on the reaction of aldehydes, 2-naphthol and methyl/benzyl carbamate, using a catalytic amount of magnesium hydrogen sulfate [Mg(HSO4)2] as an efficient heterogeneous catalyst under solvent-free conditions has been developed.
Preparation of Methyl (2-hydroxynaphthalen-1-yl)(aryl)methyl/benzylcarbamate derivatives using magnesium (II) 2,2,2-trifluoroacetate as an efficient catalyst
作者:Mohammad Reza Mohammad Shafiee、Raheleh Moloudi、Majid Ghashang
DOI:10.3184/174751911x13182405888457
日期:2011.11
2-naphthol and methyl/benzyl carbamate have been done by using magnesium 2,2,2-trifluoroacetate [Mg(OOCCF3)2] as an efficient catalyst. This methodology results in the synthesis of a variety of methyl (2-hydroxynaphthalen-1-yl)(aryl)methyl/benzylcarbamate derivatives in high yields. Despite their importance from pharmacological and synthetic points of view, comparatively few methods for the preparation of 1-carbamatoalkyl
醛、2-萘酚和甲基/苄基氨基甲酸酯的多组分缩合反应已通过使用 2,2,2-三氟乙酸镁 [Mg(OOCCF3)2] 作为有效催化剂进行。这种方法导致以高产率合成各种甲基(2-羟基萘-1-基)(芳基)甲基/苄基氨基甲酸酯衍生物。尽管从药理学和合成的角度来看它们很重要,但通过醛、2-萘酚和氨基甲酸酯的多组分反应使用酸性催化剂制备 1-氨基甲酸烷基 2-萘酚衍生物的方法相对较少。2,2,2-三氟乙酸镁[Mg(OOCCF3)2]由三氟乙酸和氯化镁反应制备。制备的催化剂已通过粉末 X 射线衍射图表征。
Efficient preparation of some new 1-carbamato-alkyl-2-naphthols using N-halo reagents in neutral media
A new and simple procedure for the synthesis of some new 1-carbamato-alkyl-2-naphthol derivatives via one-pot three-component condensation of arylaldehydes, 2-naphthol, and benzylcarbamate in the presence of catalytic amounts of 1,3,5-trichloro-1,3,5-triazinane-2,4,6-trione (TCCA) and 1,3-dichloro-5,5-dimethylhydantoin (DCDMH) under solvent-free conditions is described.