18872-85-0Relevant academic research and scientific papers
Microwave-assisted synthesis of α-hydroxybenzylphosphonates and -benzylphosphine oxides
Keglevich, Gyoergy,Toth, Viola Roza,Drahos, Laszo
, p. 15 - 17 (2011)
A series of α-hydroxy-benzylphosphonates and -benzylphosphine oxides was synthesized by the Na2CO3-catalyzed microwave-assisted addition of dialkyl phosphites and dipenylphosphine oxide to P-substituted benzaldehydes. The solventless reaction provided the products in short reaction times and in 71-88% yield.
Phosphono-replaced methyl alcohol derivative, and preparation method and application thereof
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Paragraph 0017, (2017/08/28)
The invention discloses a phosphono-replaced methyl alcohol derivative, and a preparation method and application thereof. The phosphono-replaced methyl alcohol derivative has the advantages that a (hetero) aryl methyl alcohol derivate serves as an initiator, and raw materials are easy to get and have great varieties; products obtained according to the preparation method have various types and wide application ranges, and serve as ligands which coordinate with rhodium to obtain various aldehydes through catalyzed synthesis; the phosphono-replaced (hetero) aryl methyl alcohol can be transformed into phosphonic compounds conveniently; the phosphonic compounds serving as photoinitiators can be widely applied to production of high polymer materials, paint, binders, adhesive tapes and the like. The preparation method has the advantages that reactions are achieved in the air, reaction conditions are mild, yield of target products is high, pollution is small, reaction operations and post-treatment processes are simple, and the preparation method is suitable for industrial production.
The reaction activity of aromatic carbonyl compounds with diphenylphosphine oxide studied by 31P NMR
Zheng, Jinyun,Feng, Xiangming,Yu, Yujian,Zhen, Xiaomin,Zhao, Yufen
, p. 1080 - 1087 (2013/09/02)
A series of α-hydroxyphosphine oxides were prepared by the reactions of diphenylphosphine oxide and aromatic carbonyl compounds and characterized by 1H NMR, 13C NMR, 31P NMR, FT-IR, ESI-MS, and HR-MS spectra. The reaction rates and experimental conditions of aromatic aldehydes and aromatic ketones were obviously different due to the activity of their carbonyls. The different substituents of the aromatic aldehydes affected the reaction rate too, and the quantitative reactivity of their substituent conformed to the Hammett equation. The results were confirmed by 31P NMR spectroscopy.
