Researchers who often do experiments know that organic synthesis is a process of preparing more complex target molecules from simple raw materials through one or more chemical reactions. Generally, it requires fewer steps, and cheap raw materials. 21524-34-5, name is 2-Bromo-1,3,5-triisopropylbenzene, A new synthetic method of this compound is introduced below., Formula: C15H23Br
1L three bottles,To a solution of 32.5 g of 2,4,6-triisopropylbromobenzene,5.6 g of magnesium turnings and 300 mL of anhydrous THF,20 g of o-chlorobromobenzene was dropwise added,2,4,6-triisopropyl-2-bromobiphenyl Grignard reagent,Refluxed for 2 hours,Down to room temperature,2.4 g of tetrakis (triphenylphosphine) palladium was added,Stirred for 30 minutes,18.8 g of di-tert-butylphosphonium chloride was added dropwise at room temperature,The reaction was refluxed for 5 hours.And the mixture was added dropwise to the reaction solution under ice-water bath200 mL of saturated aqueous ammonium chloride was quenched,Liquid separation,The organic phase is dissolved,Add methanol crystallization,And filtered to obtain 41.7 g of white 2-di-tert-butylphosphine-2,4,6-triisopropylbiphenyl,Yield 94%.
The basis of chemical reaction formula synthesis, the synthesis route is composed of some specific reactions and combined according to certain logical thinking. We look forward to the emergence of more reaction modes in the future.
Reference:
Patent; Panjin Gelin Kaimo Technology Co., Ltd.; Rao, Zhihua; Gong, Ningrui; (12 pag.)CN105859774; (2016); A;,
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