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1628720-51-3

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1628720-51-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1628720-51-3 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,6,2,8,7,2 and 0 respectively; the second part has 2 digits, 5 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1628720-51:
(9*1)+(8*6)+(7*2)+(6*8)+(5*7)+(4*2)+(3*0)+(2*5)+(1*1)=173
173 % 10 = 3
So 1628720-51-3 is a valid CAS Registry Number.

1628720-51-3Downstream Products

1628720-51-3Relevant academic research and scientific papers

Chiral Bis(oxazolidine)pyridine-copper-catalyzed enantioselective friedel-crafts alkylation of indoles with nitroalkenes

Sato, Toru,Arai, Takayoshi

, p. 349 - 354 (2014)

Catalytic asymmetric Friedel-Crafts reaction of indoles with nitroalkenes was catalyzed by the stereochemically tunable bis(oxazolidine)pyridine (PyBodine)-Cu(OTf)2 complex. Using the PyBodine(Val)-Cu(OTf) 2 catalyst gave the Friedel-Crafts ?adducts with highly enantioselective manner. For the 1,4-bis[(E)-2-nitrovinyl]benzene, the reaction proceeded in a meso-trick manner to give the chiral double Friedel-Crafts adduct with 97% enantiomeric excess. Georg Thieme Verlag Stuttgart New York.

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