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345218-02-2

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345218-02-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 345218-02-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,4,5,2,1 and 8 respectively; the second part has 2 digits, 0 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 345218-02:
(8*3)+(7*4)+(6*5)+(5*2)+(4*1)+(3*8)+(2*0)+(1*2)=122
122 % 10 = 2
So 345218-02-2 is a valid CAS Registry Number.

345218-02-2Relevant articles and documents

Copper-catalyzed enantioselective hydroboration of unactivated 1, 1-disubstituted alkenes

Jang, Won Jun,Song, Seung Min,Moon, Jong Hun,Lee, Jin Yong,Yun, Jaesook

supporting information, p. 13660 - 13663 (2017/11/07)

We report an efficient and highly enantioselective hydroboration of aliphatic 1, 1-disubstituted alkenes with pinacolborane using a phosphine-Cu catalyst. The method allows facile preparation of enantiomerically enriched β-chiral alkyl pinacolboronates from a range of 1, 1-disubstituted alkenes with high enantioselectivity up to 99% ee. Unprecedented enantiodiscrimination between the geminal alkyl substituents was observed with functional group compatibility in the hydroboration. Furthermore, a catalyst loading as low as 1 mol % furnished the desired product without a decrease in yield or selectivity, demonstrating its efficiency in gram scale synthesis.

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