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1352552-71-6

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1352552-71-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1352552-71-6 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,5,2,5,5 and 2 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1352552-71:
(9*1)+(8*3)+(7*5)+(6*2)+(5*5)+(4*5)+(3*2)+(2*7)+(1*1)=146
146 % 10 = 6
So 1352552-71-6 is a valid CAS Registry Number.

1352552-71-6Downstream Products

1352552-71-6Relevant articles and documents

Metal-free and recyclable route to synthesize polysubstituted olefins via C-C bond construction from direct dehydrative coupling of alcohols or alkenes with alcohols catalyzed by sulfonic acid-functionalized ionic liquids

Han, Feng,Yang, Lei,Li, Zhen,Zhao, Yingwei,Xia, Chungu

, p. 2506 - 2516 (2014)

A direct synthesis of polysubstituted olefins via construction of C-C bonds, which involves the direct dehydrative coupling of alcohols or alkenes with alcohols, was realized using a series of alkanesulfonic acid group-functionalized ionic liquids (SO3H-functionlization ILs) without additives. The metal-free and recyclable catalyst system avoided the disposal and neutralization of acidic catalysts after reaction and tolerated a broad range of substrates, including benzylic, allyl, propargylic, aliphatic and aromatic or aliphatic olefins. Additionally, the catalytic system was suitable for a gram-scale preparation. Preliminary mechanistic studies indicated that the C-H bond cleavage in this reaction might be involved in the rate-determining step.

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