Synthetic Route of 1083057-12-8 , The common heterocyclic compound, 1083057-12-8, name is tert-Butyl 3-(3-methylpyridin-2-yl)benzoate, molecular formula is C17H19NO2, its traditional synthetic route has been very mature, but the traditional synthetic route has various shortcomings, such as complicated route, low yield, poor purity, etc., below Introduce a new synthetic route.
13 g of tert-butyl-3(3-methylpyridin-2-yl)benzoate was dissolved in 80 ml ethyl acetate, then 4 ml water and 15 g ureahydrogen peroxide were added. 22 g of phthalic anhydride was added portion wise and the reaction temperature was maintained below 45 C. Thereaction mixture was heated to 45 C and stined for 4 hours. After completion of reaction, the reaction mass was cooled to room temperature. 100 ml of 10% sodium sulphite solution was added slowly and the reaction mixture was stined for 30 minutes. The layers were separated and organic layer was washed with 100 ml 10% sodium carbonate and 100 ml 10% sodium chloride solution. The organic phase is then filteredand concentrated under vacuum to afford 2-(3-(tert-butoxycarbonyl)phenyl)-3- methylpyridine-1-oxide (13 g, 94.8 %).
The synthetic route of 1083057-12-8 has been constantly updated, and we look forward to future research findings.
Reference:
Patent; MYLAN LABORATORIES LIMITED; ATTANTI, Veera Venkata Srinivasa Rao; TUMMALAPALLI, Umasankara Sastry; POTLA, Murali Krishna; TALATALA, Appireddy; GOSULA, Veera Venkata Satya Surya Appala Narasimha Tataji; KOMMARAJU, Srinivas; (45 pag.)WO2017/17696; (2017); A1;,
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