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1218988-68-1

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1218988-68-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1218988-68-1 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,1,8,9,8 and 8 respectively; the second part has 2 digits, 6 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 1218988-68:
(9*1)+(8*2)+(7*1)+(6*8)+(5*9)+(4*8)+(3*8)+(2*6)+(1*8)=201
201 % 10 = 1
So 1218988-68-1 is a valid CAS Registry Number.

1218988-68-1Downstream Products

1218988-68-1Relevant articles and documents

Catalytic asymmetric conjugate addition of α-cyanoketones for the construction of a quaternary stereogenic center

Kawato, Yuji,Takahashi, Noriko,Kumagai, Naoya,Shibasaki, Masakatsu

supporting information; experimental part, p. 1484 - 1487 (2010/06/21)

(Figure Presented) The catalytic asymmetric conjugate addition of a-cyanoketone pronucleophiles to vinyl ketones promoted by a Y/1 catalyst is described. High enantioselectivity was observed for a range of aromatic vinyl ketones, providing 1,5-dicarbonyl compounds bearing an all-carbon quaternary stereogenic center. The product was successfully converted to a spiro-piperidine entity and a bicyclo[3.3.0]octane framework through either the reduction of nitrile or intramolecular pinacol coupling.

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