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143955-39-9

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143955-39-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 143955-39-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,3,9,5 and 5 respectively; the second part has 2 digits, 3 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 143955-39:
(8*1)+(7*4)+(6*3)+(5*9)+(4*5)+(3*5)+(2*3)+(1*9)=149
149 % 10 = 9
So 143955-39-9 is a valid CAS Registry Number.

143955-39-9Downstream Products

143955-39-9Relevant articles and documents

Kinetic resolution in asymmetric anti aldol reactions of branched and straight chain racemic 2-phenylsulfanyl aldehydes: Asymmetric synthesis of cyclic ethers and lactones by phenylsulfanyl migration

Chibale, Kelly,Warren, Stuart

, p. 1935 - 1940 (2007/10/03)

The kinetic resolution of branched and straight chain 2-phenylsulfanyl aldehydes by the Lewis acid-catalysed asymmetric anti aldol reaction followed by reduction to single enantiomers of 1,3-diols and/or acid-catalysed cyclisation with PhS migration provides a route to enantiomerically pure cyclic ethers and lactones with full stereochemical control.

Kinetic resolutions in anti aldol reactions with racemic 2-phenylthio aldehydes: Asymmetric synthesis of cyclic ethers and lactones with phenylthio migration

Chibale,Warren

, p. 4369 - 4372 (2007/10/02)

Kinetic resolutions in Lewis acid catalysed asymmetric anti aldol reactions of the boron enolate of imide (2) with racemic 2-phenylthio aldehydes (3a) - (3c) give good yields of anti,anti aldols (7). Synthesis of homochiral cyclic ethers (4a) - (4c) and (

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