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1322596-77-9

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1322596-77-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1322596-77-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,2,2,5,9 and 6 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 1322596-77:
(9*1)+(8*3)+(7*2)+(6*2)+(5*5)+(4*9)+(3*6)+(2*7)+(1*7)=159
159 % 10 = 9
So 1322596-77-9 is a valid CAS Registry Number.

1322596-77-9Downstream Products

1322596-77-9Relevant articles and documents

Enantioselective Br?nsted acid catalysis in the friedel-crafts reaction of indoles with secondary ortho -hydroxybenzylic alcohols

Wilcke, David,Herdtweck, Eberhardt,Bach, Thorsten

supporting information; experimental part, p. 1235 - 1238 (2011/06/27)

The reaction of indole and various methyl-substituted indoles with the title compounds was studied in the presence of chiral phosphoric acids, which act as Br?nsted acid catalysts. While yields were generally high (>90%), significant enantioselectivities (up to 77% ee) were only achieved for certain substrate-catalyst combinations. In addition, a kinetic resolution of the starting material was observed, which led to an enrichment of one chiral alcohol to up to 68% ee after 76% conversion. The Friedel-Crafts reaction is not stereospecific (no direct S-type substitution), but rather is likely to proceed via a cation, which is bound to the chiral Br?nsted acid or its anion in a close contact ion pair. Georg Thieme Verlag Stuttgart - New York.

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