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141869-55-8

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141869-55-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 141869-55-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,1,8,6 and 9 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 141869-55:
(8*1)+(7*4)+(6*1)+(5*8)+(4*6)+(3*9)+(2*5)+(1*5)=148
148 % 10 = 8
So 141869-55-8 is a valid CAS Registry Number.

141869-55-8Downstream Products

141869-55-8Relevant articles and documents

An easy formation of dithioacetals on alumina-KF under microwave irradiation. Synthesis of new potential antiviral phosphonates

Villemin,Ben Alloum,Thibault-Starzyk

, p. 1359 - 1366 (1992)

The preparation of dithioacetals by the reaction of methylene compounds with S-methyl methanesulfonothioate on Al2O3-KF is described. Microwave irradiation without solvent provides a powerful activation. Potential antiviral phosphona

New Decarboxylation, De-ethoxycarbonylation and Desulfonylation, followed by Sulfenylation of some Half-Esters of Malonic Acids and α-Sulfonylmalonic Esters

Wladislaw, Blanka,Marzorati, Liliana,Donnici, Claudio L.

, p. 3167 - 3170 (2007/10/02)

The sulfenylation of some half-esters of malonic acids and some α-sulfonylmalonic esters with several sulfenylating reagents was investigated.Evidence was provided that in the case of the half-esters, in which NaH-dimethyl sulfoxide was employed, the formation of α,α-disulfenylated carboxylic esters may occur by two different reaction sequences, initiated either by dianion formation or decarboxylation.It is shown that, in the case of the α-sulfonylmalonic esters, in which diazabicyclooctane in refluxing toluene was employed, two competitive reactions may take place: de-ethoxycarbonylation or desulfonylation, both followed by sulfenylation.

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