27492-84-8Relevant articles and documents
Copper-catalyzed oxidative methyl-esterification of 5-hydroxymethylfurfural using TBHP as an oxidizing and methylating reagent: A new approach for the synthesis of furan-2,5-dimethylcarboxylate
Gupta, Shyam Sunder R.,Kantam, Mannepalli Lakshmi,Vinu, Ajayan
, p. 259 - 269 (2020/06/27)
Catalytic conversion of 5-hydroxymethylfurfural (HMF) into furan-2,5-dimethylcarboxylate (FDMC) is of great significance in the production of polyethylene furanoate (PEF), a renewable biomass-derived polymer that can replace the fossil dependent polyethylene terephthalate (PET). Herein, for the first time, we report the synthesis of FDMC from oxidative methyl-esterification of HMF using tert-butyl hydroperoxide (TBHP) as an oxidizing and methylating reagent catalyzed by mesoporous alumina nanospheres-embedded with CuO nanoparticles (CuO/m-Al2O3). The CuO/m-Al2O3 catalysts with different copper contents were prepared by evaporation-induced self-assembly of a structure-directing agent (Pluronic P-123). The decomposition of P-123 during calcination in air results into the formation of a mesoporous structure with highly dispersed CuO nanoparticles. The as-prepared 6-CuO/m-Al2O3 exhibits excellent catalytic activity towards oxidative methyl-esterification of HMF into FDMC with 92% yield and turnover frequency (TOF) of 0.56 h?1. Furthermore, oxidative methyl-esterification of a range of substrates through SP3 C[sbnd]H bond functionalization has also been demonstrated using the same catalyst.
Synthetic method of anti-cancer drug lenvatinib
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Paragraph 0112; 0114-0118; 0148-0154; 0185-0190; 0221-0226, (2018/04/02)
The invention discloses a synthetic method of anti-cancer drug lenvatinib. Lenvatinib is synthesized from the compound p-aminosalicylic acid shown as drawing 1 as a starting material with the method.Reaction conditions are mild, special reaction equipment is not needed, and the applicable range is wider. Raw materials and reagents used in the method are easily purchased from the market, and reduction of production cost is facilitated. The method is simple to operate, short in synthesis period and more suitable for large-scale industrial production of lenvatinib. The method is high in synthesis efficiency, and purity of synthesized lenvatinib is high.
QUINAZOLINE-BASED KINASE INHIBITORS
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Page/Page column 125, (2016/04/26)
The present disclosure is generally directed to compounds which can inhibit AAK1 (adaptor associated kinase 1), compositions comprising such compounds, and methods for inhibiting AAK1.