The readily available, heterogeneous, and inexpensive catalyst nickel-on-charcoal (Ni/C) can be used to mediate couplings between vinyl alanes and benzylic chlorides under very mild conditions and in good yields. Although such allylated aromatics are themselves important compounds, as demonstrated in this work, their syntheses under the ‘green chemistry’ conditions used can smoothly arrive at precursors to valued quinone natural products, such as the nutraceutical coenzyme Q10.
现成的、异质的、廉价的催化剂
活性炭镍(Ni/C)可以用于在非常温和的条件下促进
乙烯基铝和苄基
氯之间的偶联反应,并且产率良好。尽管这样的烯丙基芳香化合物本身是重要的化合物,如本研究所示,在所使用的“绿色
化学”条件下的合成可以顺利得到有价值的奎醌
天然产物的前体,例如营养保健品
辅酶Q10。