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74516-54-4

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74516-54-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 74516-54-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,4,5,1 and 6 respectively; the second part has 2 digits, 5 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 74516-54:
(7*7)+(6*4)+(5*5)+(4*1)+(3*6)+(2*5)+(1*4)=134
134 % 10 = 4
So 74516-54-4 is a valid CAS Registry Number.

74516-54-4Relevant articles and documents

Pd-Catalyzed Ortho C-H Hydroxylation of Benzaldehydes Using a Transient Directing Group

Chen, Xiao-Yang,Ozturk, Seyma,Sorensen, Erik J.

supporting information, p. 6280 - 6283 (2017/12/08)

The direct Pd-catalyzed ortho C-H hydroxylation of benzaldehydes was achieved using 4-chloroanthranilic acid as the transient directing group, 1-fluoro-2,4,6-trimethylpyridnium triflate as the bystanding oxidant, and p-toluenesulfonic acid as the putative oxygen nucleophile. The unusual C-H chlorination and polyfluoroalkoxylation reactions signaled the importance of external nucleophiles to the outcome of Pd(IV) reductive eliminations.

BENZOFURAN AND BENZOTHIOPHENE-2-CARBOXYLIC ACID AMIDE DERIVATIVES

-

Page/Page column 22, (2009/02/11)

The present invention relates to compounds of formula I wherein X, A and R1 to R4 are as defined in the description and claims, and pharmaceutically acceptable salts thereof. The compounds are useful for the treatment and/or prevention of diseases which are associated with the modulation of H3 receptors.

Asymmetric Diels-Alder reactions of a new enantiomerically pure sulfinylquinone: A straightforward access to functionalized Wieland-Miescher ketone analogues with (R) absolute configuration

Lanfranchi, Don Antoine,Hanquet, Gilles

, p. 4854 - 4861 (2007/10/03)

An efficient and highly stereocontrolled preparation, on a large scale, of two new Wieland-Miescher-type diketones is described. The approach centers on a diastereoselective Diels-Alder reaction using a new enantiomerically pure sulfinylquinone. Mechanist

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