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19514-05-7

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19514-05-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 19514-05-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,9,5,1 and 4 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 19514-05:
(7*1)+(6*9)+(5*5)+(4*1)+(3*4)+(2*0)+(1*5)=107
107 % 10 = 7
So 19514-05-7 is a valid CAS Registry Number.

19514-05-7Relevant articles and documents

Nickel-Catalyzed Asymmetric Addition of Aromatic Halides to Ketones: Highly Enantioselective Synthesis of Chiral 2,3-Dihydrobenzofurans Containing a Tertiary Alcohol

Li, Ying,Li, Wendian,Tian, Jiangyan,Huang, Guozheng,Lv, Hui

, p. 5353 - 5357 (2020/07/14)

A highly enantioselective and straightforward synthetic procedure to chiral 3-hydroxy-2,3-dihydrobenzofurans has been developed by nickel/bisoxazoline-catalyzed intramolecular asymmetric addition of aryl halides to unactivated ketones, giving 2,3-dihydrobenzofurans with a chiral tertiary alcohol at the C-3 position in good yields and excellent enantioselectivities (up to 92percent yield and 98percent ee). The gram-scale reaction also proceeded smoothly without a loss of yield and enantioselectivity.

A simple method for the preparation of aryl phenacyl ether in micellar medium: Part I

Nallu,Selvakumar, Robinson,Pillay, M. Krishna

, p. 1108 - 1110 (2007/10/03)

Aryl phenacyl ethers have been prepared by the micellar catalysed reaction of phenacyl bromide with equimolar mixture of phenol(s)- triethylamine in 70% methanol(v/v) 30 °C. The ethers have been characterised on the basis of their IR, 1H and s

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