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4,5-diphenyl-3-oxo-4-pentenoic acid ethyl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

650605-38-2

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650605-38-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 650605-38-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,5,0,6,0 and 5 respectively; the second part has 2 digits, 3 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 650605-38:
(8*6)+(7*5)+(6*0)+(5*6)+(4*0)+(3*5)+(2*3)+(1*8)=142
142 % 10 = 2
So 650605-38-2 is a valid CAS Registry Number.

650605-38-2Relevant academic research and scientific papers

Cationic vanadium(IV) complexes as efficient catalysts for nazarov cyclizations

Walz, Irene,Bertogg, Andreas,Togni, Antonio

, p. 2650 - 2658 (2008/02/08)

Vanadium(IV) species generated in situ from V(salen)Cl2 complexes (1) by reaction with 2 equiv. of AgSbF6 are effective catalysts for Nazarov cyclizations. Thus, dialkenyl ketones bearing α-ester groups are efficiently converted to c

Catalytic Asymmetric Nazarov Reactions Promoted by Chiral Lewis Acid Complexes

Aggarwal, Varinder K.,Belfield, Andrew J.

, p. 5075 - 5078 (2007/10/03)

(Equation presented) Divinyl ketones bearing α-ester or α-amide groups undergo Nazarov cyclizations to give cylopentenones using copper-bisoxazoline Lewis acid complexes with moderate to good ees.

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