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/Schiff Base/Pd Complex as an Efficient Heterogeneous and Recyclable Nanocatalyst for One-Pot Domino Synthesis of Carbamates and Unsymmetrical Ureas
作者:Iman Dindarloo Inaloo、Sahar Majnooni
DOI:10.1002/ejoc.201901140
日期:2019.10.9
A palladium‐catalyzed domino method for the direct synthesis of carbamates and ureas has been developed by using readily available and economical starting materials (arylhalide, carbon monoxide, sodium azide, amines, and alcohols) in a one‐pot approach. This efficient and phosgene‐free process provided an inexpensive and attractive route to synthesize the products in good to excellent yields.
van Hoogstraten, Recueil des Travaux Chimiques des Pays-Bas, 1932, vol. 51, p. 414,430
作者:van Hoogstraten
DOI:——
日期:——
US6710017B2
申请人:——
公开号:US6710017B2
公开(公告)日:2004-03-23
Synthesis of N -1′, N -3′-disubstituted spirohydantoins and their anticonvulsant activities in pilocarpine model of temporal lobe epilepsy
作者:Chen Yang、Francis A.X. Schanne、Sabesan Yoganathan、Ralph A. Stephani
DOI:10.1016/j.bmcl.2016.04.040
日期:2016.6
activity. It completely prevented the precursor events of motor seizure in the pilocarpine model of temporal lobe epilepsy. Additionally, ten of the analogs were more effective than phenytoin when compared using the Racine’s score in the pilocarpine model. Based on the structure activity relationship (SAR), we concluded that alkyl groups (ethyl, propyl or cyclopropyl) at N-3′ position and 4-nitro phenyl
display both coordinating tendencies toward copper(II) and good affinity toward urea subunits. Stability constants of the adducts are considerably higher than those determined for the interaction of the same anions with a “plain urea” reference compound, confirming the synergistic action of metallomacrocyclic and urea subunits. Complex [2]2+ forms 1:1 adducts with acetate, benzoate, hydrogendiphosphate