Synthesis and Structural Characterization of organophosphorus Ylide – 1-(3-nitrophenyl)-2-(triphenyl phosphoranylidene)ethanone

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摘要

The title compound Ph3P=C(H)C(O)PhNO2 (L) has been prepared by the addition of triphenylphosphine in acetone as solvent to 2-bromo-1-(3-nitrophenyl)ethanone followed by the addition of alkaline solution of sodium hydroxide. The yellow crystals of the title ylide were grown in methanol/chloroform solution by drop method without stirring at room temperature. The solid state structure of ylide has been established by X-ray crystallography analysis. In the molecule of the title compound, the geometry around the P atom is nearly tetrahedral and the O atom is in synperiplanar orientation to the P atom. The nitrophenyl ring is twisted with respect to the plane of the carbonyl group through an angle of 36.6(1)°. The crystal (C26H20NO3P, Mr = 425.40) belongs to the monoclinic system, space group P21/n with a = 10.889(3), b = 14.467(3), c = 13.872(4) Å, β = 103.08(3)°, V = 2128.6(10) Å3, Z = 4, T = 100(2) K, R = 0.059 and wR = 0.163 for 3984 observed reflections with I > 2σ(I).

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	Alireza Dadrass
	Ali Ramazani
	Ahmad Poursattar Marjani

关键词 ： crystal structure, phosphorus ylide, 2-bromo-1-(3-nitrophenyl)ethanone, triphenylphosphine

Abstract：

Key words： crystal structure phosphorus ylide 2-bromo-1-(3-nitrophenyl)ethanone triphenylphosphine

收稿日期: 2014-09-10 出版日期: 2015-02-13

基金资助:This project was supported by Urmia University

通讯作者: Alireza Dadrass E-mail: dadrassi@yahoo.com

引用本文:

Alireza Dadrass;Ali Ramazani;Ahmad Poursattar Marjani; . Synthesis and Structural Characterization of organophosphorus Ylide – 1-(3-nitrophenyl)-2-(triphenyl phosphoranylidene)ethanone[J]. 结构化学, 2015, 34(3): 373-378.
Alireza Dadrass;Ali Ramazani;Ahmad Poursattar Marjani; . Synthesis and Structural Characterization of organophosphorus Ylide – 1-(3-nitrophenyl)-2-(triphenyl phosphoranylidene)ethanone. CHINESE JOURNAL OF STRUCTURAL CHEMISTRY, 2015, 34(3): 373-378.

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http://manu30.magtech.com.cn/jghx/CN/ 或 http://manu30.magtech.com.cn/jghx/CN/Y2015/V34/I3/373

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