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42604-86-4

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42604-86-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 42604-86-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,2,6,0 and 4 respectively; the second part has 2 digits, 8 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 42604-86:
(7*4)+(6*2)+(5*6)+(4*0)+(3*4)+(2*8)+(1*6)=104
104 % 10 = 4
So 42604-86-4 is a valid CAS Registry Number.

42604-86-4Downstream Products

42604-86-4Relevant articles and documents

Enantioselective sulfonation of enones with sulfonyl imines by cooperative N-heterocyclic-carbene/thiourea/tertiary-amine multicatalysis

Jin, Zhichao,Xu, Jianfeng,Yang, Song,Song, Bao-An,Chi, Yonggui Robin

supporting information, p. 12354 - 12358 (2013/12/04)

Many hands make light work: In an organocatalytic asymmetric sulfonation of enones, the activation of a sulfonyl imine by an N-heterocyclic carbene (NHC) catalyst led to the release of a sulfinic anion, which underwent nucleophilic addition to the enone. The enantioselectivity of the process was controlled by a chiral thiourea/amine co-catalyst through anion recognition and hydrogen-bonding interactions. Tol=p-tolyl. Copyright

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