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1238365-77-9

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1238365-77-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1238365-77-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,3,8,3,6 and 5 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 1238365-77:
(9*1)+(8*2)+(7*3)+(6*8)+(5*3)+(4*6)+(3*5)+(2*7)+(1*7)=169
169 % 10 = 9
So 1238365-77-9 is a valid CAS Registry Number.

1238365-77-9Relevant articles and documents

Asymmetric conjugate addition of thioglycolate to a range of chalcones using tetrahydroisoquinoline (TIQ) N,N′-dioxide ligands

Chakka, Sai Kumar,Cele, Zamani E.D.,Sosibo, Sphelele C.,Francis, Vivian,Arvidsson, Per I.,Kruger, Hendrik G.,Maguire, Glenn E.M.,Govender, Thavendran

, p. 616 - 622 (2012/08/27)

A series of novel TIQ based N,N′-oxide ligands were synthesised and screened for their catalytic activity in the enantioselective conjugate addition of thioglycolate to chalcones. Bulky groups on the side chain of the TIQ backbone provided the highest enantioselectivity of up to 88% with 10 mol % catalyst loading. It was also observed that these reactions proceeded optimally in the presence of dichloromethane as a solvent. Screening of various metals emphasized La(OTf)3 as the ideal pre-catalyst for this particular reaction.

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