202476-39-9Relevant academic research and scientific papers
Base-free mizoroki-heck reaction catalyzed by rhodium complexes
Martinez, Remi,Voica, Florina,Genet, Jean-Pierre,Darses, Sylvain
, p. 3213 - 3216 (2007)
A base-free rhodium-catalyzed Mizoroki-Heck (M-H) reaction using potassium aryltrifluoroborates as the arylating agent of alkenes and acetone as a green "oxidant" is described. Thanks to the ready availability of organoboranes, this reaction should consti
A (E) - 2-aryl ethylene cinnamenyl method for preparing ester derivative
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Paragraph 0062-0064, (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.
Enantioselective synthesis of threo-α,β-dihydroxyphosphonates by asymmetric dihydroxylation of 1(E)-alkenylphosphonates with AD-mix reagents
Yokomatsu, Tsutomu,Yamagishi, Takehiro,Suemune, Kenji,Yoshida, Yoshinori,Shibuya, Shiroshi
, p. 767 - 780 (2007/10/03)
Asymmetric dihydroxylation (AD) of 1(E)-alkenylphosphonates with an AD- mix-α or -β reagent was examined to give a series of optically active threo-α,β-dihydroxyphosphonates. Good enantioselectivity (>88% ee) was observed in the AD reaction of 1(E)-alkenylphosphonates with conjugated aromatic substituents. The steric effects of the ester functionality in the course of the dihydroxylation were also evaluated. Enantioselectivity and yield were significantly improved when the AD reaction was carded out with dimethyl phosphonate instead of diethyl phosphonate.
