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155304-06-6

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155304-06-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 155304-06-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,5,3,0 and 4 respectively; the second part has 2 digits, 0 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 155304-06:
(8*1)+(7*5)+(6*5)+(5*3)+(4*0)+(3*4)+(2*0)+(1*6)=106
106 % 10 = 6
So 155304-06-6 is a valid CAS Registry Number.

155304-06-6Relevant articles and documents

Synthesis of E- and Z-substituted methylene-3,4-dihydro-2H-1-benzopyrans by regio- and stereocontrolled palladium-catalyzed intramolecular cyclization

Barberan, Olivier,Alami, Mouad,Brion, Jean-Daniel

, p. 2657 - 2659 (2001)

A stereocontrolled synthetic approach to E- and Z-substituted methylene-3,4-dihydro-2H-1-benzopyrans 5 is described from acyclic derivatives using as a key step the palladium-catalyzed intramolecular cyclic carbopalladation of iodoalkynes 4 followed by a

Diastereoselective intramolecular SmI2-H2O-amine mediated couplings

Dahlen, Anders,Petersson, Annika,Hilmersson, Goeran

, p. 2423 - 2426 (2007/10/03)

The effectiveness of SmI2-H2O-amine mixture for intramolecular couplings was discussed. Diastereoselectivities in the coupling of O-cyclohexanyliodophenol derivatives were provided into heterocycles. The amount of coupled product improved significantly as SmI2, the substrate and amine were premixed followed by a gradual addition of water.

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