20009-25-0Relevant articles and documents
Synthesis and biological evaluation of 7-deoxy analogues of the human rhinovirus 3c protease inhibitor thysanone
Schuenemann, Katrin,Furkert, Daniel P.,Connelly, Stephen,Fraser, John D.,Sperry, Jonathan,Brimble, Margaret A.
, p. 122 - 128 (2014)
The synthesis of (±)-7-deoxythysanone and three analogues has been developed. The key oxa-Pictet-Spengler reaction enabled the synthesis of the naphthopyran precursor, which could be readily converted to 7-deoxythysanone and three related analogues. The biological activity of these compounds was also evaluated against HRV 3C protease, the results of which suggest that inhibition of the enzyme requires the presence of the 7-oxa functionality. Several 7-deoxy analogues of the 3C protease inhibitor thysanone have been synthesised by using an oxa-Pictet-Spengler reaction as the key step. The biological activity of these compounds was also evaluated against human rhinovirus (HRV) 3C protease, the results of which suggest that inhibition of the enzyme requires the presence of the 7-oxa functionality. Copyright
Sharpless asymmetric dihydroxylation of aryloxy allyl ethers: A simple route to chiral β-blockers
Rama Rao,Gurjar,Joshi
, p. 697 - 698 (1990)
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Solid composite copper-copper chloride assisted alkylation of naphthols promoted by microwave irradiation
Zadmard,Aghapoor,Bolourtchian,Saidi
, p. 4495 - 4499 (1998)
Naphthyl ethers and naphthyl esters were synthesized in good yield by using mixture of copper metal powder and copper (II) chloride in conventional microwave oven in short time.
Nickel-catalyzed deallylation of aryl allyl ethers with hydrosilanes
Ding, Guangni,Fan, Sijie,Wang, Jingyang,Wang, Yu,Wu, Xiaoyu,Xie, Xiaomin,Yang, Liqun,Zhang, Zhaoguo
supporting information, (2021/09/28)
An efficient and mild catalytic deallylation method of aryl allyl ethers is developed, with commercially available Ni(COD)2 as catalyst precursor, simple substituted bipyridine as ligand and air-stable hydrosilanes. The process is compatible with a variety of functional groups and the desired phenol products can be obtained with excellent yields and selectivity. Besides, by detection or isolation of key intermediates, mechanism studies confirm that the deallylation undergoes η3-allylnickel intermediate pathway.
Preparation method 3 - phenoxybromopropane or analogue thereof
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Paragraph 0054-0056, (2021/11/26)
The invention discloses a preparation method of 3 -phenoxybromopropane or an analogue thereof, wherein 3 - phenoxybromopropane and an allyl compound thereof are obtained through substitution reaction and addition reaction so as to avoid the inconvenience of using gaseous hydrogen bromide, 2nd-step addition reaction is realized by using the brominated salt and the acid in situ, and the process is simple in operation. The condition is easy to control, the atom economy is good, the aspect of environmental impact is low pollution, zero emission accords with the current green chemical synthesis direction, and the cost is economic.
Investigating the microwave-accelerated Claisen rearrangement of allyl aryl ethers: Scope of the catalysts, solvents, temperatures, and substrates
Hui, Zi,Jiang, Songwei,Qi, Xiang,Ye, Xiang-Yang,Xie, Tian
supporting information, (2020/05/18)
The microwave-accelerated Claisen rearrangement of allyl aryl ethers was investigated, in order to gain insight into the scope of the catalysts, solvents, temperatures, and substrates. Among the catalysts examined, phosphomolybdic acid (PMA) was found to greatly accelerate the reaction in NMP, at temperatures ranging from 220 to 300 °C. This method was found to be useful for preparing several intermediates previously reported in the literature using precious metal catalysts such as Au(I), Ag(I), and Pt(II). Additionally, substrates bearing bromo and nitro groups on the aryl portion required careful tailoring of the reaction conditions to avoid complex product profiles.