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859846-07-4

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859846-07-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 859846-07-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,5,9,8,4 and 6 respectively; the second part has 2 digits, 0 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 859846-07:
(8*8)+(7*5)+(6*9)+(5*8)+(4*4)+(3*6)+(2*0)+(1*7)=234
234 % 10 = 4
So 859846-07-4 is a valid CAS Registry Number.

859846-07-4Relevant articles and documents

Synthesis of novel chiral 1,3-aminophenols and application for the enantioselective addition of diethylzinc to aldehydes

Yang, Xiao-Feng,Wang, Zhao-Hui,Koshizawa, Tomoaki,Yasutake, Mikio,Zhang, Guang-You,Hirose, Takuji

, p. 1257 - 1263 (2007)

Novel chiral 1,3-aminophenols were efficiently synthesized by applying a Friedel-Crafts reaction and optical resolution. The catalytic activity of the aminophenols was studied for the addition of diethylzinc to benzaldehyde. The results showed that (S)-5a with bulky tert-butyl groups on the stereogenic carbon atom and 4,6-positions of phenol favored higher enantioselectivity (94% ee). The same ligand was also used with other aldehydes, to give optically active alcohols in good chemical yields and ee values (up to 99%).

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