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1606176-67-3

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1606176-67-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1606176-67-3 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,6,0,6,1,7 and 6 respectively; the second part has 2 digits, 6 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 1606176-67:
(9*1)+(8*6)+(7*0)+(6*6)+(5*1)+(4*7)+(3*6)+(2*6)+(1*7)=163
163 % 10 = 3
So 1606176-67-3 is a valid CAS Registry Number.

1606176-67-3Downstream Products

1606176-67-3Relevant articles and documents

Chemoselective catalytic conjugate addition of alcohols over amines

Uesugi, Shuhei,Li, Zhao,Yazaki, Ryo,Ohshima, Takashi

supporting information, p. 1611 - 1615 (2014/03/21)

A highly chemoselective conjugate addition of alcohols in the presence of amines is described. The cooperative nature of the catalyst enabled chemoselective activation of alcohols over amines, allowing the conjugate addition to soft Lewis basic α,β-unsaturated nitriles. Divergent transformation of the nitrile functionality highlights the utility of the present catalysis. The cooperative nature of a copper catalyst enabled the highly chemoselective activation of alcohols in the presence of amines and thus the conjugate addition of the hydroxy group to soft Lewis basic α,β-unsaturated nitriles. The presented method proceeds under proton-transfer conditions, reverses the innate reactivity of the OH and NH groups, and does not require protecting groups. dppe=1,2-bis(diphenylphosphino) ethane, MeSal=3-methylsalicylate. Copyright

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