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1258760-17-6

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1258760-17-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1258760-17-6 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,5,8,7,6 and 0 respectively; the second part has 2 digits, 1 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 1258760-17:
(9*1)+(8*2)+(7*5)+(6*8)+(5*7)+(4*6)+(3*0)+(2*1)+(1*7)=176
176 % 10 = 6
So 1258760-17-6 is a valid CAS Registry Number.

1258760-17-6Downstream Products

1258760-17-6Relevant articles and documents

Cleavage of benzyl ethers by triphenylphosphine hydrobromide

Ramanathan, Mani,Hou, Duen-Ren

supporting information; experimental part, p. 6143 - 6145 (2010/12/24)

Triphenylphosphine hydrobromide was found to cleave the benzyl ethers derived from 1°, 2° alkyl, and aryl alcohols to the corresponding alcohols and benzyltriphenylphosphonium bromide in good yields. Alkene and allyl phosphonium salts were produced from the benzyl ethers with 3° alkyl and allyl groups, respectively. These results indicate that the formation of the product is determined by the relative stability of the carbocationic intermediate. The anhydrous, stoichiometric amount of PPh3·HBr offers a new and effective method for the deprotection of benzyl ethers.

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