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89539-31-1

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89539-31-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 89539-31-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,9,5,3 and 9 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 89539-31:
(7*8)+(6*9)+(5*5)+(4*3)+(3*9)+(2*3)+(1*1)=181
181 % 10 = 1
So 89539-31-1 is a valid CAS Registry Number.

89539-31-1Relevant articles and documents

Cyanuric chloride/sodium borohydride: A new reagent combination for reductive opening of 4,6-benzylidene acetals of carbohydrates to primary alcohols

Tatina, Madhubabu,Yousuf, Syed Khalid,Aravinda, Subrayashastry,Singh, Baldev,Mukherjee, Debaraj

, p. 142 - 145 (2013)

In the first such example, NaBH4 in combination with cyanuric chloride (TCT) has been used to obtain 6-hydroxy-4-benzyl ether derivatives from 4,6-benzylidene acetals of carbohydrates. The nature of hydride donor determines the regioselectivity

Some observations on the reductive ring opening of 4,6-O-benzylidene acetals of hexopyranosides with the borane trimethylamine-aluminium chloride reagent

Daragics, Katalin,Szabó, Pál,Fügedi, Péter

experimental part, p. 1633 - 1637 (2011/09/14)

Reductive ring openings of 3-O-benzoyl-4,6-O-benzylidene-d-glucopyranosides with BH3·NMe3-AlCl3 are accompanied by side reactions, such as debenzoylation and reduction of the benzoate to benzyl ether. This phenomenon was r

Regio- and chemoselective reductive cleavage of 4,6-O-benzylidene-type acetals of hexopyranosides using BH3·THF-TMSOTf

Daragics, Katalin,Fügedi, Péter

experimental part, p. 2914 - 2916 (2009/09/06)

Benzylidene-type cyclic acetals of carbohydrates undergo efficient reductive ring opening using BH3·THF and a catalytic amount of TMSOTf at room temperature. 4,6-O-Benzylidene-hexopyranosides afford the corresponding 4-O-benzyl ethers exclusive

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