Adding a certain compound to certain chemical reactions, such as: 37466-90-3, name is Ethyl 3,4-diaminobenzoate, belongs to esters-buliding-blocks compound, can increase the reaction rate and produce products with better performance than those obtained under traditional synthetic methods. Here is a downstream synthesis route of the compound 37466-90-3, name: Ethyl 3,4-diaminobenzoate
General procedure: Ethyl-3-amino-4-(2-substituted amino)benzoate, 3 (1 mmol) and various sodium bisulfite adducts, 4 (1.5 mmol) were dissolved in DMF (5 mL). The reaction mixture was stirred at 90 C under N2 atmosphere for 24-48 h. After completion of reaction (evident by TLC), the reaction mixture was diluted in ethyl acetate (25 mL) and washed with water (10 mL×3). The organic layer was collected, dried over Na2SO4 and evaporated under reduced pressure to afford crude products. Final compounds 5-7 were obtained in 38-90% yields after recrystallization from ethanol or column purification.
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Reference:
Article; Yoon, Yeong Keng; Ali, Mohamed Ashraf; Wei, Ang Chee; Choon, Tan Soo; Ismail, Rusli; European Journal of Medicinal Chemistry; vol. 93; (2015); p. 614 – 624;,
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