121485-50-5Relevant articles and documents
Catalytic Dealkylative Synthesis of Cyclic Carbamates and Ureas via Hydrogen Atom Transfer and Radical-Polar Crossover
Nagai, Takuya,Mimata, Nao,Terada, Yoshihiro,Sebe, Chikayoshi,Shigehisa, Hiroki
supporting information, p. 5522 - 5527 (2020/07/24)
Guided by the transition-metal hydrogen atom transfer and radical-polar crossover concepts, we developed a functional-group-tolerant and scalable method for the synthesis of cyclic carbamates and ureas, which are found in the structures of bioactive compo
Method for synthesizing N - aryl oxazolidine -2 - ketone compound by ionic liquid catalysis
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Paragraph 0031-0032; 0073-0074, (2019/10/01)
The invention discloses a method for catalytic synthesis of a N-aryloxazolane-2-one compound or a chiral N-aryloxazolane-2-one compound from an ionic liquid. The process of the preparation method is as follows: a catalytic amount of ionic liquid is added
Carbon dioxide-based facile synthesis of cyclic carbamates from amino alcohols
Niemi, Teemu,Fernández, Israel,Steadman, Bethany,Mannisto, Jere K.,Repo, Timo
supporting information, p. 3166 - 3169 (2018/03/28)
We report herein a straightforward general method for the synthesis of cyclic carbamates from amino alcohols and carbon dioxide in the presence of an external base and a hydroxyl group activating reagent. Utilizing p-toluenesulfonyl chloride (TsCl), the reaction proceeds under mild conditions, and the approach is fully applicable to the preparation of various high value-added 5- and 6-membered rings as well as bicyclic fused ring carbamates. DFT calculations and experimental results indicate a SN2-type reaction mechanism with high regio-, chemo-, and stereoselectivity.