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111748-83-5

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111748-83-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 111748-83-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,1,7,4 and 8 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 111748-83:
(8*1)+(7*1)+(6*1)+(5*7)+(4*4)+(3*8)+(2*8)+(1*3)=115
115 % 10 = 5
So 111748-83-5 is a valid CAS Registry Number.

111748-83-5Downstream Products

111748-83-5Relevant articles and documents

Reactivity of α-(benzoyloxy)crotylstannane with aldehydes in liquid phase and on solid support. Synthesis of substituted lactones

Cossy,Rasamison,Pardo

, p. 7195 - 7198 (2007/10/03)

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Stereoselective Reduction of γ-Oxobutanoic Acids Using DIBAL-H and ZnCl2

Frenette, R.,Monette, M.,Bernstein, M. A.,Young, R. N.,Verhoeven, T. R.

, p. 3083 - 3089 (2007/10/02)

A variety of γ-aromatic γ-ketobutanoic acids can be reduced selectively, under optimized conditions, by the use of DIBAL-H and ZnCl2 to provide the (RS,SR)-γ-aryl-γ-hydroxy-β-methylbutanoic acids.Further evidence has been gathered to support the hypothesis that the reaction proceeds by formation of a seven-membered ring complex with the aluminium or zinc atom bridging the ketone and carboxyl groups which preceeds the reduction step and that this templated reduction accounts for observed high diastereoselectivity.Also we have shown that some γ-aryl-γ-butyrolactones can be easily transformed via an oxidative cleavage of the aromatic ring to provide selective synthesis of either cis- or trans-tetrahydro-3-methyl-5-oxo-2-furancarboxylic acid derivatives.

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