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104892-58-2

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104892-58-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 104892-58-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,4,8,9 and 2 respectively; the second part has 2 digits, 5 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 104892-58:
(8*1)+(7*0)+(6*4)+(5*8)+(4*9)+(3*2)+(2*5)+(1*8)=132
132 % 10 = 2
So 104892-58-2 is a valid CAS Registry Number.

104892-58-2Relevant articles and documents

Remote electronic effects in the rhodium-catalyzed nucleophilic ring opening of oxabenzonorbornadienes.

Lautens, Mark,Schmid, Gavin A,Chau, Anh

, p. 8043 - 8053 (2007/10/03)

We report the application of our rhodium-catalyzed nucleophilic ring-opening methodology to unsymmetrically arene-substituted oxabenzonorbornadienes. The regioselectivity of the ring opening was investigated using a variety of nucleophiles that led to a broad selection of dihydronaphthalene products. It was found that good to excellent regioselectivities are obtained using strongly pi-donating substituents, whereas sigma-donating and electron-withdrawing functionalities have a minimal effect. Post ring-opening manipulations of functional groups in the dihydronaphthalene products were shown to give efficient access to mono- and diamine tetrahydronaphthalene building blocks.

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