首页> 外文期刊>Polyhedron: The International Journal for Inorganic and Organometallic Chemistry >Synthesis of new organochalcogen (Se or Te) based multifunctional pyrimidine derivatives: X-ray structure determination of 2,4-bis (arylchalcogenyl)pyrimidine and 2-chloro-4,6-bis(arylchalcogenyl) pyrimidine compounds
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Synthesis of new organochalcogen (Se or Te) based multifunctional pyrimidine derivatives: X-ray structure determination of 2,4-bis (arylchalcogenyl)pyrimidine and 2-chloro-4,6-bis(arylchalcogenyl) pyrimidine compounds

机译:新的基于有机硫属元素(Se或Te)的多功能嘧啶衍生物的合成:2,4-双(芳基硫属酰基)嘧啶和2-氯-4,6-双(芳基硫属酰基)嘧啶化合物的X射线结构测定

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摘要

A new class of multinucleate pyrimidine chalcogen (Se/Te) derivatives, i.e. 2,4-bis(arylchalcogenyl) pyrimidine and 2-chloro-4,6-bis(arylchalcogenyl)pyrimidine compounds, has been synthesized for the first time by the nucleophilic substitution of chlorine at the C-2 and C-4 positions of 2,4-dichloropyrimidine and at the C-4 and C-6 positions of 2,4,6-trichloropyrimidine with a variety of chalcogen bearing aryl anions ArE~- (Ar = phenyl, 1-naphthyl, p-tolyl). All the newly prepared pyrimidyl chalcogen compounds have been thoroughly characterized with the help of various spectroscopic techniques, viz, NMR (~1H, ~(13)C, ~(77)Se), FT-IR and mass spectrometry (in representative cases). The crystal structures of 2,4-bis(naphthalen-1-ylselanyl)pyrimidine (1c), 2,4-bis(phenyltelluryl)pyrimidine (1d), 2-chloro-4,6- bis(phenylselanyl)pyrimidine (2a) and 4,6-bis(p-tolylselanyl)-2-chloropyrimidine (2b) were confirmed by X-ray crystallographic analysis.
机译:亲核试剂首次合成了一种新型的多核嘧啶硫族元素(Se / Te)衍生物,即2,4-双(芳基硫族酰基)嘧啶和2-氯-4,6-双(芳基硫族酰基)嘧啶化合物用各种带有硫属元素的芳基阴离子ArE〜-(2,4-二氯嘧啶的C-2和C-4位置以及2,4,6-三氯嘧啶的C-4和C-6位置的氯取代Ar =苯基,1-萘基,对甲苯基)。所有新制备的嘧啶基硫属元素化合物均已借助各种光谱技术进行了全面表征,即,NMR(〜1H,〜(13)C,〜(77)Se),FT-IR和质谱(在代表性案例中) 。 2,4-双(萘-1-基硒基)嘧啶(1c),2,4-双(苯基碲基)嘧啶(1d),2-氯-4,6-双(苯基硒基)嘧啶(2a)的晶体结构通过X射线晶体学分析确认了4,6-双(对甲苯基硒烷基)-2-氯嘧啶(2b)。

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