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1-(3,4-Dimethoxy-phenyl)-3-ethylsulfanyl-propan-1-one is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

203437-89-2

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203437-89-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 203437-89-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,3,4,3 and 7 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 203437-89:
(8*2)+(7*0)+(6*3)+(5*4)+(4*3)+(3*7)+(2*8)+(1*9)=112
112 % 10 = 2
So 203437-89-2 is a valid CAS Registry Number.

203437-89-2Relevant academic research and scientific papers

Reactions of β-ethylsulfanylpropionyl tetrafluoroborate with electron-rich aromatics: A novel synthesis of aryl vinyl ketones

Lebedev, Mikhail V.,Nenajdenko, Valentine G.,Balenkova, Elizabeth S.

, p. 89 - 93 (1998)

A new synthesis of aryl vinyl ketones is described. The acylation of active aromatics with the complex of β-ethylsulfanylpropionyl fluoride 1 and boron trifluoride leads to formation of 1-aryl-3-(ethylsulfanyl)propan-1-ones. Subsequent methylation with methyl triflate and elimination with an aqueous solution of KHCO3 results in formation of aryl vinyl ketones in 86-99% yield.

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