145-42-6, Name is Monosodium taurocholate, molecular formula is C26H44NNaO7S, belongs to chiral-catalyst compound, is a common compound. In a patnet, author is Zhou, Yi-Ming, once mentioned the new application about 145-42-6, Application In Synthesis of Monosodium taurocholate.
A practical, efficient Fe(III)-BPsalan complex catalyzed asymmetric dearomative chlorination reaction of 2-hydroxy-1-naphthoates derivatives (22 examples) was developed. With readily available Fe(III)-BPsalan complex as catalyst at 5 mol% catalyst loading, various 2-hydroxy-1-naphthoates derivatives bearing different substituents were efficiently chlorinated to afford chiral naphthalenones bearing a Cl-containing all-substituted stereocenter in high yields and with good to excellent enantioselectivities under mild reaction conditions. The reaction could be conducted at gram scale with the high efficiency and selectivity retained. In addition, the reaction could be extended to asymmetric dearomative bromination to afford the corresponding brominated product in 87% yield and 76% ee.
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Reference:
Chiral Catalysts,
,Chiral catalysts – SlideShare