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1580457-78-8

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1580457-78-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1580457-78-8 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,5,8,0,4,5 and 7 respectively; the second part has 2 digits, 7 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 1580457-78:
(9*1)+(8*5)+(7*8)+(6*0)+(5*4)+(4*5)+(3*7)+(2*7)+(1*8)=188
188 % 10 = 8
So 1580457-78-8 is a valid CAS Registry Number.

1580457-78-8Relevant articles and documents

Carboxy-directed asymmetric hydrogenation of α-alkyl-α-aryl terminal olefins: Highly enantioselective and chemoselective access to a chiral benzylmethyl center

Yang, Shuang,Zhu, Shou-Fei,Guo, Na,Song, Song,Zhou, Qi-Lin

supporting information, p. 2049 - 2052 (2014/03/21)

A carboxy-directed asymmetric hydrogenation of α-alkyl-α-aryl terminal olefins was developed by using a chiral spiro iridium catalyst, providing a highly efficient approach to the compounds with a chiral benzylmethyl center. The carboxy-directed hydrogenation prohibited the isomerization of the terminal olefins, and realized the chemoselective hydrogenation of various dienes. The concise enantioselective syntheses of (S)-curcudiol and (S)-curcumene were achieved by using this catalytic asymmetric hydrogenation as a key step.

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