نتایج جستجو برای: Vinylphosphonates

تعداد نتایج: 15  

Mina Bashirpour Parvaneh Shabankareh Tahereh Shojaee Tayebeh Sanaeishoar,

An efficient synthesis of vinylphosphonates is described. This involves the reaction of alkyl cyanoformates and dialkyl acetylendicarboxylates in the presence of trialkyl phosphites. The 1H, 13C NMR, and 31P NMR spectra of vinylphosphonates having different substitution are consistent with the presence of two geometrical isomers.

Journal: :Chemical communications 2015
Qingwen Gui Liang Hu Xiang Chen Jidan Liu Ze Tan

An efficient and stereoselective synthesis of vinylphosphonates and phosphine oxides was developed starting from styrenes using AgNO3 as the catalyst and K2S2O8 as the oxidant. The success of the reaction was found to be critically dependent on the use of TEMPO as the additive.

2014
Raj K Malla Jeremy N Ridenour Christopher D Spilling

Dimethyl (β-substituted) vinylphosphonates do not readily undergo cross metathesis reactions with Grubbs catalyst and terminal alkenes. However, the corresponding mono- or diallyl vinylphosphonate esters undergo facile cross metathesis reactions. The improved reactivity is attributed to a relay step in the cross metathesis reaction mechanism.

Journal: :Beilstein Journal of Organic Chemistry 2014

Journal: :Bulletin of the Chemical Society of Japan 1980

Journal: :Magnetochemistry 2022

Magnetite nanoparticles and clusters of have been Increasing scientific interest in the past decades. In order to prepare that are stable suspension, different coatings used. Phosphates phosphonates a preferred anchoring group for coating magnetite nanomaterials. However, poly(vinylphosphonates) rarely used as agent any nanoparticles. Here, poly(methylvinylphosphonate) other substituted polyvin...

Journal: :Phosphorus, Sulfur, and Silicon and the Related Elements 2014

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