The origin of a common compound about tert-Butyl 3-bromo-6-chloropicolinate

The chemical industry reduces the impact on the environment during synthesis 1235036-15-3, I believe this compound will play a more active role in future production and life.

Electric Literature of 1235036-15-3, With the rapid development and complex challenges of chemical substances, the synthesis of new drugs is usually one of the most effective ways to increase yield.1235036-15-3, name is tert-Butyl 3-bromo-6-chloropicolinate, molecular formula is C10H11BrClNO2, molecular weight is 292.56, as common compound, the synthetic route is as follows.

To a solution of Example 1.23.2 (12.3 g) and tert-butyl 3-bromo-6-chloropicolinate (5.9 g) in dioxane (50 mL) was added (lS,3R,5R,7S)-l,3,5,7-tetramethyl-8-phenyl-2,4,6-trioxa-8- phosphaadamantane(CyTop) (0.52 g) and bis(dibenzylideneacetone)palladium(0) (0.66 g). After several house vacuum/nitrogen refills, potassium phosphate (4.06 g) and water (25 mL) were added and the reaction was heated at 80 C under nitrogen for 30 minutes. The reaction was cooled and then water and ethyl acetate were added. The organic layer was separated and washed with brine. The combined aqueous layers were extracted with ethyl acetate, and dried over sodium sulfate. The solution was filtered, concentrated and chromatographed on silica gel using 33% ethyl acetate in heptanes to give the title compound.

The chemical industry reduces the impact on the environment during synthesis 1235036-15-3, I believe this compound will play a more active role in future production and life.

Reference:
Patent; ABBVIE INC.; BENATUIL, Lorenzo; BRUNCKO, Milan; JUDD, Andrew, S.; LI, Yingchun; MCCLUSKEY, Andrew; PHILLIPS, Andrew, C.; PHILLIPS, Darren, C.; SEAGAL, Jane; SOUERS, Andrew, J.; (608 pag.)WO2017/214458; (2017); A2;,
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