18872-86-1Relevant articles and documents
Push-pull acylo-phosphine oxides for two-photon-induced polymerization
Nazir, Rashid,Danilevicius, Paulius,Gray, David,Farsari, Maria,Gryko, Daniel T.
, p. 7239 - 7244 (2013)
The two-step method for the synthesis of acyl-phosphine oxides from aromatic aldehydes was optimized giving the products in 52-97% overall yield. Linear and nonlinear optical properties of series of acyl-phosphine oxides possessing substituents with different electron-donating ability were investigated. Two-photon absorption cross sections (σ2) of push-pull acyl-phosphine oxide was determined as 9GM via z-scan measurements with femtosecond laser pulses. Using acyl-phosphine oxides possessing dipolar structure as initiators, 3D nanopatterns were successfully fabricated by two-photon initiated polymerization. These compounds also initiate classical photopolymerization when excited with UV radiation.
Benzyl phosphine oxide compound as well as preparation method and application thereof
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Paragraph 0058-0063, (2021/08/25)
The invention discloses a benzyl phosphine oxide compound as well as a preparation method and application thereof. The benzyl phosphine oxide compound has heterocyclic aromatic phosphine oxide and high-activity hydroxyl, so that the benzyl phosphine oxide compound has high biological activity, can be effectively used as a medical intermediate, and has wide application prospects in the field of medicines. The benzyl phosphine oxide compound is easy to prepare and has high conversion rate under mild conditions, and the highest yield of the product can reach 81%.
Fast and Chemoselective Addition of Highly Polarized Lithium Phosphides Generated in Deep Eutectic Solvents to Aldehydes and Epoxides
Cicco, Luciana,Fombona-Pascual, Alba,Sánchez-Condado, Alba,Carriedo, Gabino A.,Perna, Filippo M.,Capriati, Vito,Presa Soto, Alejandro,García-álvarez, Joaquín
, p. 4967 - 4973 (2020/08/21)
Highly polarized lithium phosphides (LiPR2) were synthesized, for the first time, in deep eutectic solvents as sustainable reaction media, at room temperature and in the absence of protecting atmosphere, through direct deprotonation of both ali
Selective P?C(sp3) Bond Cleavage and Radical Alkynylation of α-Phosphorus Alcohols by Photoredox Catalysis
Jia, Kunfang,Li, Junzhao,Chen, Yiyun
, p. 3174 - 3177 (2018/02/09)
Herein the first P?C(sp3) bond cleavage and radical alkynylation of α-phosphorus alcohols to construct phosphonoalkynes is reported. The phosphorus radical is generated upon P?C bond cleavage reaction via the alkoxyl radical through photoredox catalysis with cyclic iodine(III) reagents. Various arylphosphinoyl-, alkylphosphinoyl-, phosphonate-, and phosphonic amide alcohols serve as radical phosphorus precursors to construct phosphonoalkynes for the first time.
Dearylation of arylphosphine oxides using a sodium hydride-iodide composite
Tejo, Ciputra,Pang, Jia Hao,Ong, Derek Yiren,Oi, Miku,Uchiyama, Masanobu,Takita, Ryo,Chiba, Shunsuke
supporting information, p. 1782 - 1785 (2018/02/21)
A new protocol for the dearylation of arylphosphine oxides was developed using sodium hydride (NaH) in the presence of lithium iodide (LiI). The transient sodium phosphinite could be functionalized with a range of electrophiles in a one-pot fashion.
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.
Microwave-assisted synthesis of α-hydroxybenzylphosphonates and -benzylphosphine oxides
Keglevich, Gyoergy,Toth, Viola Roza,Drahos, Laszo
experimental part, p. 15 - 17 (2011/10/09)
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.
