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1222178-35-9

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1222178-35-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1222178-35-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,2,2,1,7 and 8 respectively; the second part has 2 digits, 3 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 1222178-35:
(9*1)+(8*2)+(7*2)+(6*2)+(5*1)+(4*7)+(3*8)+(2*3)+(1*5)=119
119 % 10 = 9
So 1222178-35-9 is a valid CAS Registry Number.

1222178-35-9Downstream Products

1222178-35-9Relevant articles and documents

Enantioselective α-hydroxylation of β-keto esters catalyzed by chiral S-timolol derivatives

Cai, Yuanchun,Lian, Mingming,Li, Zhi,Meng, Qingwei

experimental part, p. 7973 - 7977 (2012/09/21)

A screen of aryloxy aminopropanol organocatalysts derived from the β-blocker inhibitor S-timolol determined the most active catalyst of asymmetric α-hydroxylation of β-keto esters. (R)-1-(tert-butylamino)- 3-(3,4,5-trimethoxyphenoxy) propan-2-ol (3k) was the most effective derivative, enantioselectively catalyzing α-hydroxylation of β-keto esters using tert-butyl hydroperoxide as the oxidant in hexane to afford the corresponding products in excellent yield and with good enantioselectivity (up to 96% yield, 88% ee).

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