81399-34-0Relevant academic research and scientific papers
Synthesis of (E)- and (Z)-alkenylphosphonates using vinylboronates
Kabalka, George W.,Guchhait, Sankar K.
, p. 729 - 731 (2003)
(Matrix presented) (E)- and (Z)-alkenylphosphonates have been prepared stereospecifically via the reaction of vinylboronate esters with triethyl phosphite in the presence of palladium acetate.
TEMPO and Silver-Mediated Intermolecular Phosphonylation of Alkenes: Stereoselective Synthesis of (E)-Alkenylphosphonates
Wang, Lei,Yang, Zhen,Zhu, Huijuan,Liu, Haitao,Lv, Shuaipeng,Xu, Yue
supporting information, p. 2138 - 2142 (2019/03/17)
An efficient method was developed towards the synthesis of alkenylphosphonates from simple olefins and phosphonate diesters. This method was enabled by the use of cheap and commercially available silver salts and TEMPO. This method exhibits of good functional group tolerance, specific (E)-selectivity for all olefins and vinyl selectivity for aliphatic olefins. A radical mechanism was proposed, and TEMPO was involved in the product formation step.
Cu(i)/Fe(III)-Catalyzed C-P cross-coupling of styrenes with H-phosphine oxides: A facile and selective synthesis of alkenylphosphine oxides and β-ketophosphonates
Gu, Jian,Cai, Chun
supporting information, p. 4226 - 4230 (2017/07/10)
Cu(i)/Fe(iii)-Catalyzed phosphorylation and oxyphosphorylation of styrenes with H-phosphonates which can be controlled by varying the reaction temperature are developed. This study offers a new and expedient strategy for the synthesis of useful alkenylphosphine oxides and β-ketophosphonates in satisfactory yields. Moreover, the transformation is proposed to proceed via a radical process and exhibits a broad substrate scope and good functional group tolerance.
A (E) - 2-aryl ethylene cinnamenyl method for preparing ester derivative
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Paragraph 0071-0073, (2017/03/08)
The invention discloses method for preparing (E)-2-aryl vinyl phosphonate derivatives. The method comprises the specific following steps of dissolving 1-nitro-2-aryl-vinyl derivatives, a phosphorus reagent, an accelerator manganese acetate and a catalyst copper acetate in a solvent and reacting at 20-100 DEG C to obtain the (E)-2-aryl vinyl phosphonate derivatives. According to the method disclosed by the invention, the 1-nitro-2-aryl-vinyl derivatives are adopted as starting materials, the raw materials are easily available and have multiple varieties; the products obtained by the method disclosed by the invention are multiple and can be directly applied and can be also used for other further reaction; according to the method, the use of precious metal reagents and other additives is avoided; and meanwhile, the synthetic route is short, reaction conditions are mild, the reaction operation and post-treatment process are simple, the yield is high and the method is suitable for scale production.
Manganese(iii)-mediated alkenyl Csp2-P bond formation from the reaction of β-nitrostyrenes with dialkyl phosphites
Xue, Jian-Fei,Zhou, Shao-Fang,Liu, Ye-Ye,Pan, Xiangqiang,Zou, Jian-Ping,Asekun, Olayinka Taiwo
, p. 4896 - 4902 (2015/05/05)
Mn(OAc)3-mediated tandem phosphonyl radical addition to β-nitrostyrenes followed by denitration to form (E)-2-alkenyl phosphonates in good yield is described.
A novel stereoselective synthesis of (E)-2-arylvinylphosphonates in InCl3-NaBH4-MeCN system
Wang, Chunyan,Pan, Yuanjiang,Yang, Deyu
, p. 1705 - 1709 (2007/10/03)
Hydroindation of arylalkynylphosphonates gives a intermediate which can be hydrolyzed to (E)-2-arylvinylphosphonates in InCl3-NaBH 4-MeCN system, the stereoselectivity and yield are rather high, but under the same conditions 2-alkylalkynylphosphonates do not react very well.
A novel method for the preparation of fluoroaryl- and fluoroalkyl-substituted bis- and tris-phosphonic acids
Classen,Haegele
, p. 71 - 81 (2007/10/03)
The formation of various aromatic fluorinated vinylphosphonates, geminal and vicinal bisphosphonates and trisphosphonates by the Wittig-Horner-Emmons reaction and Michael addition is presented. The regiospecific direction of Michael addition under basic c
