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16200-57-0

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16200-57-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 16200-57-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,6,2,0 and 0 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 16200-57:
(7*1)+(6*6)+(5*2)+(4*0)+(3*0)+(2*5)+(1*7)=70
70 % 10 = 0
So 16200-57-0 is a valid CAS Registry Number.

16200-57-0Relevant articles and documents

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Kevill,D.N. et al.

, p. 7300 - 7306 (1970)

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Solvent-free and selective tosylation of alcohols and phenols with p-toluenesulfonyl chloride by heteropolyacids as highly efficient catalysts

Fazaeli, Razieh,Tangestaninejad, Shahram,Aliyan, Hamid

, p. 812 - 818 (2007/10/03)

Tosylation of some alcohols and phenols has been directly carried out with p-toluenesulfonyl chloride using heterodoxy acids (H3PW 12O40, H3PMo12O40, A 3PW12O40, and AlPMo12O40) as catalysts in the absence of solvent. We found that heteropoly acids AlPW12O40 and AlPMo 12O40 were effective catalysts for the tosylation of alcohols and phenols. In the case of aliphatic alcohols, secondary alcohols undergo tosylation chemoselectively in the presence of primary hydroxyl groups. This new method consistently has the advantage of excellent yields and short reaction time.

Herstellung und Solvolyse von 3-substituierten p-Toluolsulfonsaeure-(1-adamantyl)estern

Bielman, Rolf,Grob, Cyril A.,Schaub, Bruno

, p. 1728 - 1733 (2007/10/02)

Methods for the preparation of some hitherto unknown 3-substituted 1-adamantyl toluenesulfonates are evaluated.Their solvolysis products in dioxane/water 70:30 are reported.

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