Cyclization of 1-(2-hydroxyphenyl)-3-phenylpropane-1,3-dione with isothiocyanates: a simple one-pot synthesis of novel 4-oxo-2-phenyl-4H-chromene-3-carbothioamides and 2-phenyl-3-(2-thioxo-2H-1,3,5,4-thiadiazaphosphinin-6-yl)-4-oxo-4H-chromenes

IF 2.1 3区 化学 Q3 CHEMISTRY, MULTIDISCIPLINARY
Tarik E. Ali , Mohammed A. Assiri , Mohamed Abdel-Megid
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引用次数: 0

Abstract

A simple synthetic strategy to construction of novel 4-oxo-2-phenyl-4H-chromene-3-carbothioamides (26) was achieved. The synthetic strategy depended on the treatment of 1-(2-hydroxyphenyl)-3-phenylpropane-1,3-dione (1) with some examples of aryl, aralkyl, aroyl and phosphorus isothiocyanates with promotion of DBU. The interesting 4,6-diphenyl-5-(2-hydroxy-benzoyl)-2-thioxo-3,4-dihydro-2H-1,3,4-oxazaphosphinine (8) as a highly regioselective product was obtained through treatment of the substrate 1 with phenyl phosphonisothiocyanatidous chloride whereas the other novel 2-phenyl-3-(2-thioxo-2H-1,3,5,4-thiadiazaphosphinin-6-yl)-4-oxo-4H-chromenes (9 and 10) were formed by using phosphorous diisothiocyanate and triisothiocyanate, respectively, under the same basic reaction conditions. All the reaction mechanisms were discussed. Structures of all the synthesized products were established by elemental analysis and available spectral tools.

1-(2-羟基苯基)-3-苯基丙烷-1,3-二酮与异硫氰酸盐的环化反应:新型 4-氧代-2-苯基-4H-苯并吡喃-3-硫代酰胺和 2-苯基-3-(2-硫酮-2H-1,3,5,4-噻二唑膦-6-基)-4-氧代-4H-苯并吡喃的简单单锅合成法
我们采用一种简单的合成策略构建了新型 4-氧代-2-苯基-4H-色烯-3-硫代酰胺(2-6)。该合成策略依赖于将 1-(2-羟基苯基)-3-苯基-4H-苯并...
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来源期刊
Journal of Sulfur Chemistry
Journal of Sulfur Chemistry CHEMISTRY, MULTIDISCIPLINARY-
CiteScore
4.10
自引率
9.10%
发文量
38
审稿时长
6-12 weeks
期刊介绍: The Journal of Sulfur Chemistry is an international journal for the dissemination of scientific results in the rapidly expanding realm of sulfur chemistry. The journal publishes high quality reviews, full papers and communications in the following areas: organic and inorganic chemistry, industrial chemistry, materials and polymer chemistry, biological chemistry and interdisciplinary studies directly related to sulfur science. Papers outlining theoretical, physical, mechanistic or synthetic studies pertaining to sulfur chemistry are welcome. Hence the target audience is made up of academic and industrial chemists with peripheral or focused interests in sulfur chemistry. Manuscripts that truly define the aims of the journal include, but are not limited to, those that offer: a) innovative use of sulfur reagents; b) new synthetic approaches to sulfur-containing biomolecules, materials or organic and organometallic compounds; c) theoretical and physical studies that facilitate the understanding of sulfur structure, bonding or reactivity; d) catalytic, selective, synthetically useful or noteworthy transformations of sulfur containing molecules; e) industrial applications of sulfur chemistry; f) unique sulfur atom or molecule involvement in interfacial phenomena; g) descriptions of solid phase or combinatorial methods involving sulfur containing substrates. Submissions pertaining to related atoms such as selenium and tellurium are also welcome. Articles offering routine heterocycle formation through established reactions of sulfur containing substrates are outside the scope of the journal.
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