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861064-70-2

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861064-70-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 861064-70-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,6,1,0,6 and 4 respectively; the second part has 2 digits, 7 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 861064-70:
(8*8)+(7*6)+(6*1)+(5*0)+(4*6)+(3*4)+(2*7)+(1*0)=162
162 % 10 = 2
So 861064-70-2 is a valid CAS Registry Number.

861064-70-2Relevant articles and documents

Functionalization of Piperidine Derivatives for the Site-Selective and Stereoselective Synthesis of Positional Analogues of Methylphenidate

Babl, Tobias,Davies, Huw M. L.,Liu, Wenbin,R?ther, Alexander,Reiser, Oliver

supporting information, (2020/03/23)

Rhodium-catalyzed C?H insertions and cyclopropanations of donor/acceptor carbenes have been used for the synthesis of positional analogues of methylphenidate. The site selectivity is controlled by the catalyst and the amine protecting group. C?H functionalization of N-Boc-piperidine using Rh2(R-TCPTAD)4, or N-brosyl-piperidine using Rh2(R-TPPTTL)4 generated 2-substitited analogues. In contrast, when N-α-oxoarylacetyl-piperidines were used in combination with Rh2(S-2-Cl-5-BrTPCP)4, the C?H functionalization produced 4-susbstiuted analogues. Finally, the 3-substituted analogues were prepared indirectly by cyclopropanation of N-Boc-tetrahydropyridine followed by reductive regio- and stereoselective ring-opening of the cyclopropanes.

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