Cyclic carbonates are valuable chemicals for the chemical industry and thus, their efficient synthesis is essential. Commonly, cyclic carbonates are synthesised in a two-step process involving the epoxidation of an alkene and a subsequent carboxylation to the cyclic carbonate. To couple both steps into a direct oxidative carboxylation reaction would be desired from an economical view point since additional work-up procedures can be avoided. Furthermore, the efficient sequestration of CO2, a major greenhouse gas, would also be highly desirable. In this work, the oxidative carboxylation of 1-decene is investigated using supported gold catalysts for the epoxidation step and tetrabutylammonium bromide in combination with zinc bromide for the cycloaddition of carbon dioxide in the second step. The compatibility of the catalysts for both steps is explored and a detailed study of catalyst deactivation using X-ray photoelectron spectroscopy and scanning electron microscopy is reported. Promising selectivity of the 1,2-decylene carbonate is observed using a one-pot two-step approach.

中文翻译：

---

1-癸烯氧化羰基化为碳酸1,2-癸烯酯。

环状碳酸酯是化学工业中有价值的化学品，因此，它们的有效合成至关重要。通常，环状碳酸酯是以两步法合成的，包括烯烃的环氧化和随后的羧化为环状碳酸酯。从经济的观点出发，希望将两个步骤都偶联到直接氧化羧化反应中，因为可以避免额外的后处理程序。此外，也非常需要有效地隔离主要温室气体CO2。在这项工作中，使用环氧化步骤的负载型金催化剂和溴化四丁基铵与溴化锌的第二步环加二氧化碳方法，研究了1-癸烯的氧化羧化反应。探索了两个步骤中催化剂的相容性，并报道了使用X射线光电子能谱和扫描电子显微镜对催化剂失活的详细研究。使用一锅两步法观察到1,2-癸烯碳酸酯的选择性。