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1227746-70-4

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1227746-70-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1227746-70-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,2,7,7,4 and 6 respectively; the second part has 2 digits, 7 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 1227746-70:
(9*1)+(8*2)+(7*2)+(6*7)+(5*7)+(4*4)+(3*6)+(2*7)+(1*0)=164
164 % 10 = 4
So 1227746-70-4 is a valid CAS Registry Number.

1227746-70-4Downstream Products

1227746-70-4Relevant articles and documents

High pressure-assisted low-loading asymmetric organocatalytic conjugate addition of nitroalkanes to chalcones

Cholewiak, Agnieszka,Adamczyk, Kamil,Kopyt, Micha?,Kasztelan, Adrian,Kwiatkowski, Piotr

, p. 4365 - 4371 (2018/06/22)

The application of high pressure (up to 9 kbar) allows for relatively fast (1-5 h) and highly enantioselective 1,4-addition of nitromethane and 2-nitropropane to chalcones at room temperature with substantial reduction of catalyst loading (0.2-1 mol% of cinchona alkaloid-based thioureas and squaramides). Various γ-nitroketones were obtained at 9 kbar with high yield and enantioselectivity (up to 98%), whereas in control experiments at atmospheric pressure usually only a small amount (10%) of products were formed after 20 h.

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