Chemistry, like all the natural sciences, begins with the direct observation of nature¡ª in this case, of matter.1210348-34-7, Name is tert-Butyl ((1R,2S,5S)-2-amino-5-(dimethylcarbamoyl)cyclohexyl)carbamate oxalate, SMILES is O=C(OC(C)(C)C)N[C@H]1[C@@H](N)CC[C@H](C(N(C)C)=O)C1.O=C(O)C(O)=O, belongs to chiral-catalyst compound. In a document, author is Chen, Wenchao, introduce the new discover, Recommanded Product: tert-Butyl ((1R,2S,5S)-2-amino-5-(dimethylcarbamoyl)cyclohexyl)carbamate oxalate.
Silicon hydrides, alkynylsilanes, and alkoxylsilanes were activated by fluoride in the presence of bisguanidinium catalyst to form hypervalent silicate ion pairs. These activated silicates undergo 1,4-additions with chromones, coumarins, and alpha-cyanocinnamic esters generating enolsilicate intermediates, for a consequent stereoselective alkylation reaction. The reduction-alkylation reaction proceeded under mild conditions using polymethylhydrosiloxane, a cheap and environmentally friendly hydride source. The addition-alkylation reactions with alkynylsilanes and alkoxylsilanes resulted in the construction of two vicinal chiral carbon centers with excellent enantioselectivities and diastereoselectivities (up to 99% ee, >99:1 dr). Density functional theory calculations and experimental NMR studies revealed that penta-coordinated silicates are crucial intermediates.
The proportionality constant is the rate constant for the particular unimolecular reaction. the reaction rate is directly proportional to the concentration of the reactant. I hope my blog about 1210348-34-7 is helpful to your research. Recommanded Product: tert-Butyl ((1R,2S,5S)-2-amino-5-(dimethylcarbamoyl)cyclohexyl)carbamate oxalate.
Reference:
Chiral Catalysts,
,Chiral catalysts – SlideShare