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77228-69-4

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77228-69-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 77228-69-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,7,2,2 and 8 respectively; the second part has 2 digits, 6 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 77228-69:
(7*7)+(6*7)+(5*2)+(4*2)+(3*8)+(2*6)+(1*9)=154
154 % 10 = 4
So 77228-69-4 is a valid CAS Registry Number.

77228-69-4Downstream Products

77228-69-4Relevant articles and documents

Consecutive β,β′-Selective C(sp3)?H Silylation of Tertiary Amines with Dihydrosilanes Catalyzed by B(C6F5)3

Fang, Huaquan,Xie, Kaixue,Kemper, Sebastian,Oestreich, Martin

supporting information, p. 8542 - 8546 (2021/03/08)

Tris(pentafluorophenyl)borane has been found to catalyze the two-fold C(sp3)?H silylation of various trialkylamine derivatives with dihydrosilanes, furnishing the corresponding 4-silapiperidines in decent yields. The multi-step reaction cascade involves amine-to-enamine dehydrogenation at two alkyl residues and two electrophilic silylation reactions of those enamines, one inter- and one intramolecular.

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