Synthetic Route of 17874-79-2, As we all know, there are many different methods for the synthesis of a compound, and people can choose the synthesis method that suits their own laboratory according to the actual situation. 17874-79-2, name is 5-(Methoxycarbonyl)picolinic acid, molecular formula is C8H7NO4, The compound is widely used in many fields, so it is necessary to find a new synthetic route. The downstream synthesis method of this compound is introduced below.
10314] Dimethyl-2,5-pyridinedicarboxylate (960 mg, 4.9mmoles) and CaC12 (2.198 g, 19.7 mmoles) were added to a dried flask. THF (11 mE) and EtOH (12 mE) were added, and the resulting suspension was stirred on ice for 30 minutes. NaI3H4 (465 mg, 12.3 mmoles) was added portion wise with stirring. The reaction was allowed to come to room temperature overnight. Afier 18 h, the reaction was quenched by the dropwise addition of an aqueous solution of NH4C1 (saturated aqueous NH4C1 [20 mE] plus H20 [40 mE]) while stirring on ice. The aqueous layer was extracted with DCM (4×30 mE) and the combined organics were dried over Na2SO4(s) and concentrated under reduced pressure to afford the crude alcohol (678 mg) as a pale yellow solid. The crude alcohol was dissolved in dry DCM (45 mE), after which Dess-Martin periodinane (2.6 g, 6.1 mmoles) was added portion wise while stirring on ice. After 6 h, the reaction was quenched by the dropwise addition of a solution of 5% Na2S2O3 in half saturated NaHCO3 (80 mE). The aqueous layer was extracted with DCM (3×40 mE). The combined organics were dried over Na2SO4(s) and concentrated under reduced pressure to afford the title compound (504 mg, 62%) as a pale yellow solid. ?H NMR (400 MHz, CDC13) oe 10.16 (s, 1H), 9.38 (dd, J=0.5, 2.0 Hz, 1H), 8.49 (dd, J=2.0, 8.0 Hz, 1H), 8.05 (dd, J=0.5, 8.0 Hz, 1H), 4.02 (s, 1H); ?3C NMR (100 MHz, CDC13) oe 192.6, 164.8, 154.9, 151.2, 138.3, 121.1, 52.9; HRMS (El) mlz 165.0415 [calc?d for C8H7N03 (M) 165.042 1]
While traditionally a conservative industry, chemical producers will need to modernize their PR strategies to stay relevant.we look forward to future research findings about 17874-79-2, 5-(Methoxycarbonyl)picolinic acid.
Reference:
Patent; WISCONSIN ALUMNI RESEARCH FOUNDATION; RAINES, Ronald T.; Vasta, James; (50 pag.)US2016/280701; (2016); A1;,
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