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1303612-73-8

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1303612-73-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1303612-73-8 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,0,3,6,1 and 2 respectively; the second part has 2 digits, 7 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1303612-73:
(9*1)+(8*3)+(7*0)+(6*3)+(5*6)+(4*1)+(3*2)+(2*7)+(1*3)=108
108 % 10 = 8
So 1303612-73-8 is a valid CAS Registry Number.

1303612-73-8Downstream Products

1303612-73-8Relevant articles and documents

Asymmetric synthesis of methylenetetrahydrofurans by palladium-catalyzed [3 + 2] cycloaddition of trimethylenemethane with aldehydes - A novel ligand design

Trost, Barry M.,Bringley, Dustin A.,Silverman, Steven M.

, p. 7664 - 7667 (2011)

The palladium-catalyzed [3 + 2] cycloaddition of trimethylenemethane (TMM) with aldehydes is a direct and efficient route to methylenetetrahydrofurans. Herein we describe the first asymmetric synthesis of methylenetetrahydrofurans utilizing a palladium-TMM complex in the presence of a novel phosphoramidite ligand possessing a stereogenic phosphorus. The method allows for the formation of chiral disubstituted tetrahydrofurans in good yields and enantioselectivities.

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