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143879-15-6

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143879-15-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 143879-15-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,3,8,7 and 9 respectively; the second part has 2 digits, 1 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 143879-15:
(8*1)+(7*4)+(6*3)+(5*8)+(4*7)+(3*9)+(2*1)+(1*5)=156
156 % 10 = 6
So 143879-15-6 is a valid CAS Registry Number.

143879-15-6Relevant articles and documents

Synthesis of alkyl (α-phenylthioalkenyl) ketones containing a (Z)-trisubstituted olefinic fragment

Grigorieva, N. Ya.,Tsiklauri, P. G.

, p. 665 - 670 (2007/10/03)

Warren's method, which has been proposed for the synthesis of α-phenylthiodialkyl ketones, appeared to be inefficient for the preparation of their alkenyl alkyl analogs. The latter were prepared in good yields by alkenylation of alkyl phenylthiomethyl ketones with alkenyl bromides.

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.

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