Children learn through play, and they learn more than adults might expect. Science experiments are a great way to spark their curiosity, get their minds active, and encourage them to do something that doesn’t involve a screen. 224311-51-7, C20H27P. A document type is Article, introducing its new discovery., Recommanded Product: 2-(Di-tert-Butylphosphino)biphenyl
A convenient synthetic strategy toward N-acylguanidines via a sequential one-pot multicomponent carbonylation/amination reaction has been developed. The compounds were readily obtained via an N-cyanobenzamide intermediate formed from the Pd(0)-catalyzed carbonylative coupling of cyanamide and aryl iodides or bromides. Subsequent amination with a large variety of amines provided the final N-acylguanidines, with the overall formation of one C-C and two C-N bonds, in moderate to excellent yields. The substrate scope was found to be wide and the methodology was used to produce over 50 compounds, including 29 novel molecules. Furthermore, three separate nitrogen-containing heterocycles were prepared from the N-acylguanidines synthesized using the developed multicomponent, carbonylative method.
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Reference：
Phosphine ligand,
Chiral phosphine ligands in asymmetric synthesis. Molecular structure and absolute configuration of (1,5-cyclooctadiene)-(2S,3S)-2,3-bis(diphenylphosphino)butanerhodium(I) perchlorate tetrahydrofuran solvate