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A Sustainable, Semi-Continuous Flow Synthesis of Hydantoins

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Seeberger,  Peter H.
Peter H. Seeberger, Biomolekulare Systeme, Max Planck Institute of Colloids and Interfaces, Max Planck Society;

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Gilmore,  Kerry
Kerry Gilmore, Biomolekulare Systeme, Max Planck Institute of Colloids and Interfaces, Max Planck Society;

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Citation

Vukelić, S., Koksch, B., Seeberger, P. H., & Gilmore, K. (2016). A Sustainable, Semi-Continuous Flow Synthesis of Hydantoins. Chemistry – A European Journal, 22(38), 13451-13454. doi:10.1002/chem.201602609.


Cite as: https://hdl.handle.net/11858/00-001M-0000-002A-F4ED-E
Abstract
Hydantoins are an important class of heterocycles with applications in pharmacy, agriculture, and as intermediates in organic synthesis. Traditional synthetic procedures to access hydantoins are target oriented with multiple synthetic steps, often use reagents that are not commercially available, and are not sustainable. Herein, an efficient process is described accessing hydantoins starting from commercially available amines using consecutive gas/liquid transformations (oxygen, carbon dioxide). This semi-continuous process produced ten benzylic/aliphatic hydantoins in good overall yields (52-84%).