A two-step process was demonstrated for the conversion of 1-butene to n-nonanal with an overall reaction selectivity of 70.8%. The process consists of a dimerization step over a heterogeneous carbon-supported cobalt oxide catalyst to a mixture of oligomers, consisting primarily of internal linear octenes. After product distillation, the olefinic mixture was converted to C₉ aldehydes with a normal/isomeric (N/I) ratio of 3.8 over a homogeneous Rh/BIPHEPHOS catalyst. This work demonstrates a new route to produce linear aldehydes from light olefins.

中文翻译：

---

1-丁烯在碳负载的CoO _x上的低聚和随后的异构化/加氢甲酰化为正壬醛

证实了两步法将1-丁烯转化为正壬醛，总反应选择性为70.8％。该方法包括在异质碳负载的氧化钴催化剂上进行二聚化步骤，以形成主要由内部线性辛烯组成的低聚物混合物。产物蒸馏后，在均相的Rh / BIPHEPHOS催化剂上，将烯烃混合物转化为正/异构（N / I）比为3.8的C ₉醛。这项工作证明了从轻质烯烃生产线性醛的新途径。