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methyl 2,4-di-O-p-tolylsulfonyl-α-D-xylopyranoside is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

84207-31-8

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84207-31-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 84207-31-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,4,2,0 and 7 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 84207-31:
(7*8)+(6*4)+(5*2)+(4*0)+(3*7)+(2*3)+(1*1)=118
118 % 10 = 8
So 84207-31-8 is a valid CAS Registry Number.

84207-31-8Relevant academic research and scientific papers

Catalytic regioselective sulfonylation of α-chelatable alcohols: Scope and mechanistic insight

Martinelli, Michael J.,Vaidyanathan, Rajappa,Pawlak, Joseph M.,Nayyar, Naresh K.,Dhokte, Ulhas P.,Doecke, Christopher W.,Zollars, Lisa M. H.,Moher, Eric D.,Khau, Vien Van,Kosmrlj, Berta

, p. 3578 - 3585 (2007/10/03)

This paper describes a convenient protocol for the regioselective sulfonylation of α-chelatable alcohols. Typically, the reaction of α-heterosubstituted alcohols with 1 equiv of p-TsCl and 1 equiv of Et3N in the presence of 2 mol % of Bu2SnO leads to rapid, regioselective, and exclusive monotosylation. The pKa of the amine was correlated to the reaction rate. A plausible mechanism for this reaction has been proposed on the basis of 119Sn NMR studies.

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