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(4-Benzenesulfonyl-2-isopropylidene-cyclopentyl)-methanol is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

128902-40-9

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128902-40-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 128902-40-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,8,9,0 and 2 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 128902-40:
(8*1)+(7*2)+(6*8)+(5*9)+(4*0)+(3*2)+(2*4)+(1*0)=129
129 % 10 = 9
So 128902-40-9 is a valid CAS Registry Number.

128902-40-9Downstream Products

128902-40-9Relevant academic research and scientific papers

Methylenecyclopentane Annulations of Unactivated and Electron-Rich Olefins with 2-(Phenylsulfonyl)-1-methylenecyclopropanes

Singleton, Daniel A.,Church, Kevin M.

, p. 4780 - 4782 (2007/10/02)

The thiyl radical catalyzed reaction of 1 with unactivated and electron-rich olefins affords methylenecyclopentanes regiospecifically.Using irradiation in the presence of dibutyl disulfide, these reactions can be achieved using equimolar amounts of olefin

Catalytic stereocontrol of a radical cyclization

Singleton,Church,Lucero

, p. 5551 - 5554 (2007/10/02)

The stereochemistry of the free-radical chain mediated methylenecyclopentane annulation of olefins with 1 can be influenced significantly by the choice of catalyst radical. This suggests a new approach to the general problem of stereocontrol in radical re

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