Chemistry, like all the natural sciences, SDS of cas: 495-40-9, begins with the direct observation of nature¡ª in this case, of matter.495-40-9, Name is 1-Phenylbutan-1-one, SMILES is CCCC(C1=CC=CC=C1)=O, belongs to isothiazole compound. In a document, author is Li, Meng-Fan, introduce the new discover.
Palladium/N,N ‘-Disulfonyl Bisimidazoline-Catalyzed Enantioselective Addition of Arylboronic Acids to Cyclic N-Sulfonyl Ketimines
The combination of Pd(TFA)(2) and an N,N’-disulfonyl bisimidazoline ligand shows high catalytic activity and excellent asymmetric induction in the addition of arylboronic acids to cyclic N-sulfonyl ketimines including benzo[d]-isothiazole-1,1-dioxides, benzo[e][1,2,3]oxathiazine-2,2-dioxides, and 1,2,5-thiadiazole-1,1-dioxides, by which three types of chiral quaternary carbon-containing sultams with substantial substitution diversity were synthesized with high yields and excellent enantioselectivities (up to >99% ee). The current catalysis demonstrated a remarkable tolerance to oxygen and thus provided an operationally simple approach for constructing enantioenriched cyclic quaternary stereocenters.
Note that a catalyst decreases the activation energy for both the forward and the reverse reactions and hence accelerates both the forward and the reverse reactions. you can also check out more blogs about 495-40-9. SDS of cas: 495-40-9.
Reference:
Isothiazole – Wikipedia,
,Isothiazole – ScienceDirect.com