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79253-37-5

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79253-37-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 79253-37-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,9,2,5 and 3 respectively; the second part has 2 digits, 3 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 79253-37:
(7*7)+(6*9)+(5*2)+(4*5)+(3*3)+(2*3)+(1*7)=155
155 % 10 = 5
So 79253-37-5 is a valid CAS Registry Number.

79253-37-5Relevant articles and documents

Enantioselective hydrogenation of olefins with iridium-phosphanodihydrooxazole catalysts

Lightfoot, Andrew,Schnider, Patrick,Pfaltz, Andreas

, p. 2897 - 2899 (1998)

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Highly enantioselective hydrogenation of 2-substituted-2-alkenols catalysed by a ChenPhos-Rh complex

Wang, Quanjun,Liu, Xueying,Liu, Xian,Li, Bin,Nie, Huifang,Zhang, Shengyong,Chen, Weiping

supporting information, p. 978 - 980 (2014/01/06)

Highly enantioselective hydrogenation of a variety of 2-substituted-2- alkenols has been achieved using a ChenPhos-Rh complex as catalyst, giving ≥99% ee for most substrates. Optically active antifungal agent amorolfine was first synthesised using hydrogenation as the key step. This journal is

Stereoselective cyclopropanation and ring-opening: Application to the synthesis of pure (S)-2-methyl-3-arylpropylamines

Roje, Marin,Vinkovic, Vladimir,Sunjic, Vitomir,Solladie-Cavallo, Arlette,Diep-Vohuule, Anh,Isarno, Thomas

, p. 9123 - 9128 (2007/10/03)

Stereoselective catalytic and stoichiometric cyclopropanation of styrenes 3a,3b was studied; the stoichiometric method turned out superior in the terms of enantioselectivity. The intermediate carboxymethyl cyclopropane 11a,11b, obtained on reduction of carbethoxy derivatives 4a,4b, were hydrogenolyzed to (S)-1,3-substituted-2-methylpropanes 15a,15b. The highest conversion and regioselectivity was obtained with 3% Pd/C as the catalyst. The final steps, chlorination of alcohol 15a into 19a, and alkylation of cyclic sec amines were already demonstrated by us (ref. 2c) to afford (S)-(- )-2-(4-tert-butylphenyl)-1-cis-2,6-dimethylmorpholyl)propane (S-1a) and (S)- (-)-2-(4-tert-butylphenyl)-1-piperidylpropane (S-2a), the (S)-enantiomers of two systemic fungicides presently commercialized as racemates, without any lost of enantiomeric purity.

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