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31582-87-3

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31582-87-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 31582-87-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,1,5,8 and 2 respectively; the second part has 2 digits, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 31582-87:
(7*3)+(6*1)+(5*5)+(4*8)+(3*2)+(2*8)+(1*7)=113
113 % 10 = 3
So 31582-87-3 is a valid CAS Registry Number.

31582-87-3Downstream Products

31582-87-3Relevant articles and documents

Kaolin-assisted Aromatic Chlorination and Bromination

Hirano, Masao,Monobe, Hiroyuki,Yakabe, Shigetaka,Morimoto, Takashi

, p. 662 - 663 (1998)

Moist kaolin catalyses the regioselective and high-yielding chlorination and bromination of C6H5OR (R = C1-C8 alkyl. Bu1, allyl, cyclohexyl, benzyl) to 4-XC6H4OR (X = Cl and Br, respectively) with NaCl02 and Mn(acac)3 in CH2Cl2 in the absence and presence of NaBr, respectively, under mild and neutral conditions.

Regiospecific aromatic chlorination of alkyl phenyl ethers using sodium chlorite catalysed by manganese(III) acetylacetonate and moist alumina in dichloromethane

Hirano, Masao,Yakabe, Shigetaka,Monobe, Hiroyuki,Clark, James H.,Morimoto, Takashi

, p. 3081 - 3085 (2007/10/03)

A solid-liquid biphasic system (dichloromethane and chromatographic neutral alumina) has been tested for the aromatic chlorination of various alkyl aryl ethers using a reagent combination of sodium chlorite and manganese(III) acetylacetonate catalyst. Efficient incorporation of a chlorine atom into the benzene ring with high para-selectivity results. This catalytic system is also applicable to the regiocontrolled chlorination of polyether substrates.

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