The origin of a common compound about 1-Isopropoxy-2-vinylbenzene

At the same time, in my other blogs, there are other synthetic methods of this type of compound, 1-Isopropoxy-2-vinylbenzene, and friends who are interested can also refer to it.

Electric Literature of 67191-35-9, 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. 67191-35-9 name is 1-Isopropoxy-2-vinylbenzene, This 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.

Under anhydrous and anaerobic conditions,Grubbs first generation catalyst 1a (1.22mmol)Add to a 100mL Schlenk bottle,Compound IIIba (2863 mg, 2.43 mmol) andPotassium tert-butoxide (477 mg, 4.25 mmol)It was added to the reaction flask, and 50 mL of n-hexane was added.After reacting for 5 hours at 60 C with stirring, the reaction was monitored by TLC.After the reaction was completed, n-hexane was removed under reduced pressure.The intermediate obtained in the previous step was dissolved in 40 mL of dichloromethane.Add cuprous chloride (300 mg, 1.42 mmol) and stir for 5 min.Compound 2a1 (296 mg, 1.82 mmol)It was added to the reaction flask, and the temperature was raised to 40 C, and the reaction was monitored by TLC.After completion of the reaction, column chromatography gave 568 mg of pale green solid powder IIba1, yield: 32.0%.

At the same time, in my other blogs, there are other synthetic methods of this type of compound, 1-Isopropoxy-2-vinylbenzene, and friends who are interested can also refer to it.

Reference:
Patent; Chengdu Kaimeisi Business Wu Information Advisory Center (Limited Partner); Chen Jianxin; (28 pag.)CN110041262; (2019); A;,
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