63291-09-8Relevant academic research and scientific papers
Acetonitrile-dependent oxyphosphorylation: A mild one-pot synthesis of β-ketophosphonates from alkenyl acids or alkenes
Chen, Xi,Chen, Xiaolan,Li, Xu,Qu, Chen,Qu, Lingbo,Bi, Wenzhu,Sun, Kai,Zhao, Yufen
, p. 2439 - 2446 (2017/04/03)
An efficient one-pot synthesis of β-ketophosphonates has been developed, via the reaction of α,β-alkenyl carboxylic acids or alkenes with H-phosphonates and air oxygen, catalyzed by CuSO4·5H2O in CH3CN. CH3CN plays a decisive role, probably by forming an active oxygen complex [(MeCN)nCuII-O-O·].
A one-pot strategy to synthesize β-ketophosphonates: Silver/copper catalyzed direct oxyphosphorylation of alkynes with H-phosphonates and oxygen in the air
Chen, Xin,Li, Xu,Chen, Xiao-Lan,Qu, Ling-Bo,Chen, Jian-Yu,Sun, Kai,Liu, Zhi-Dong,Bi, Wen-Zhu,Xia, Ying-Ya,Wu, Hai-Tao,Zhao, Yu-Fen
supporting information, p. 3846 - 3849 (2015/03/30)
A highly efficient one-pot strategy has been developed for the synthesis of β-ketophosphonates directly from alkynes and dialkyl H-phosphonates in the presence of widely available AgNO3/CuSO4 and K2S2O8 at room temperature under open-air conditions.
Synthesis of β-ketophosphonates via AgNO3-catalyzed hydration of alkynylphosphonates: A rate-enhancement effect of methanol
Xiang, Jiannan,Yi, Niannian,Wang, Ruijia,Lu, Linghui,Zou, Huaxu,Pan, Yuan,He, Weimin
, p. 694 - 699 (2015/02/02)
β-Ketophosphonates were prepared via AgNO3-catalyzed hydration of alkynylphosphonates with a dramatic rate-enhancement effect of methanol. This benign aqueous-methanol method catalyzed by a low-cost catalyst has simple, atom-economical procedure, and was used effectively with a wide range of substrates.
A practical synthesis of β-keto phosphonates from triethyl phosphonoacetate
Kim, Dae Young,Kong, Myeon Sik,Kim, Taek Hyeon
, p. 2487 - 2496 (2007/10/03)
An efficient and practical preparation of β-keto phosphonates, via acylation reaction of triethyl phosphonoacetate with carboxylic acid chlorides in the presence of magnesium chloride-triethylamine followed by decarbethoxylation, is described.
SYNTHESE D'ARYLOXY-1 OU -3 OXO-2 PROPYLPHOSPHONATES ET LEUR CYCLODEHYDRATATION EN BENZOFURANNE PHOSPHONATES
Haelters, J. P.,Corbel, B.,Sturtz, G.
, p. 85 - 96 (2007/10/02)
Phenoxides react with masked halogenecarbonyl compounds, 1- or3- chloro-2 methoxycarbonylhydrazonopropylphosphonates 6b or 11 and 3-bromo-2 diethylamino-1-propylphosphonate 9, to give 1- or 3-aryloxy-2-oxopropylphosphonates of type 1 and 2.The aryloxyketones 1 and 2 thus obtained, when treated under acidic condition, are cyclodehydrated to the benzofurane phosphonates 3 and 4 which structures are fully determined using 31P, 1H and 13C nmr spectroscopy.
