Organic silicon coupling agent and preparation method thereof
An organosilicon coupling agent and catalyst technology, applied in organic chemistry, chemical instruments and methods, organic compound/hydride/coordination complex catalysts, etc. Addition reaction is limited and other problems, to achieve the effect of large steric hindrance, avoid agglomeration, improve selectivity and activity
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Embodiment 1
[0046] Embodiment 1: the synthesis of platinum-containing catalyst COP1-Pt
[0047] By adding COP1-T 7mg (6*10 -4 mmol) of anhydrous tetrahydrofuran solution containing 0.93mg (2.4*10 -3 mmol) 1 ml of anhydrous tetrahydrofuran solution of sodium tetrachloroplatinate (II), stirred for 12 hours, then added 325 mg of dimethylphenylsilane for reduction, and stirred at room temperature for 12 hours to prepare a catalyst solution.
Embodiment 2
[0048] Embodiment 2: Preparation of organosilicon coupling agent
[0049] Take 10mmol of triethoxysilane, add 10mmol of styrene to it, stir evenly, add 0.17ml of the catalyst solution in Example 1, react for 10 hours under the protection of argon in a silicone oil bath at 50°C, and cool to obtain the product, which is subjected to GC -MS detection, isolated yield 90%, 1H NMR (300MHz, CDCl3) δ0.97 (t, 2H), 1.23 (t, 9H), 2.74 (t, 2H), 3.84 (q, 6H), 7.30-7.14 (m,5H).
[0050] The molecular structural formula of the product is:
Embodiment 3
[0051] Embodiment 3: Preparation of organosilicon coupling agent
[0052] Take 1mmol of triethoxysilane, add 1mmol of 2-vinylpyridine to it, stir evenly, add 1.5ml of the catalyst solution in Example 1 (concentrated to 0.15ml), and react for 10 hours, cooled to obtain the product, the product was detected by GC-MS, and the isolated yield was 96%. 1H NMR (300MHz, CDCl3) δ1.14(t, 2H), 1.22(t, 9H), 2.90(t, 2H), 3.82(q, 6H), 7.09(t, 1H), 7.19(d, 1H) , 7.58(t,1H), 8.51(d,1H).
[0053] The molecular structural formula of the product is:
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