Each compound has different characteristics, and only by selecting the characteristics of the compound suitable for a specific situation can the compound be applied on a large scale. 105404-89-5, name is 2,7-Dibromo-3,6-dimethoxynaphthalene, This compound has unique chemical properties. The synthetic route is as follows., Recommanded Product: 2,7-Dibromo-3,6-dimethoxynaphthalene
Sodium (0.21 g, 8.6 mmol) was added portionwise to anhydrous methanol (30 mL) stirred under an argon atmosphere. Upon complete dissolution, copper(I) iodide (1.65 g, 8.64 mmol), 3,6-dibromo-2,7-dimethoxynaphthalene (7, 1.50 g, 4.32 mmol) and anhydrous DMF (5 mL), were added to the reaction mixture and brought to reflux for 24 h. Additional copper(I) iodide (0.83 g, 4.32 mmol) and satd sodium methoxide (20 mL) were added to regenerate the catalyst and stirred at reflux for an additional 12 h. The reaction was quenched by the addition of water (10 mL) and extracted with DCM (2*25 mL), washed successively with 10% HCl (2*10 mL), water (2*10 mL), dried (MgSO4) and concentrated in vacuo to afford a crude solid, which was recrystallized from ethanol to afford the title compound (0.75 g, 70%). Mp 255-256 C (lit. 23 mp>200 C). 1H NMR (300 MHz, CDCl3) delta 7.04 (s, 4H), 3.98 (s, 12H); 13C NMR (75 MHz, CDCl3) delta 148.1, 124.1, 55.8; IR (ATR) (cm-1) 3064, 3003, 2964, 2937, 2887, 1669, 1608, 1528, 1510. HRMS (EI+, 70 eV); m/z: [M]+ calcd for C14H16O4 248.1049, found 248.1048.
According to the analysis of related databases, 105404-89-5, the application of this compound in the production field has become more and more popular.
Reference:
Article; Tate, Daniel J.; Abdelbasit, Mohamed; Kilner, Colin A.; Shepherd, Helena J.; Warriner, Stuart L.; Bushby, Richard J.; Tetrahedron; vol. 70; 1; (2014); p. 67 – 74;,
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