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4-Penten-1-one,1-(1-methyl-1H-pyrrol-2-yl)-(9CI) is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

640285-93-4

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640285-93-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 640285-93-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,4,0,2,8 and 5 respectively; the second part has 2 digits, 9 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 640285-93:
(8*6)+(7*4)+(6*0)+(5*2)+(4*8)+(3*5)+(2*9)+(1*3)=154
154 % 10 = 4
So 640285-93-4 is a valid CAS Registry Number.

640285-93-4Downstream Products

640285-93-4Relevant academic research and scientific papers

One-Pot Synthesis of Homoallylic Ketones from the Addition of Vinyl Grignard Reagent to Carboxylic Esters

Hansford, Karl A.,Dettwiler, James E.,Lubell, William D.

, p. 4887 - 4890 (2003)

(Equation Presented) Fifteen homoallylic ketones have been synthesized in 26-77% yields on treatment of aromatic, aliphatic, and α-amino methyl carboxylates with excess vinylmagnesium bromide and catalytic amounts of a copper salt in THF. α-Amino homoallylic ketones derived from N-protected α-amino esters possessing aliphatic and alcohol side chains were synthesized in ≥98% enantiomeric purity.

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