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1191391-91-9

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1191391-91-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1191391-91-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,9,1,3,9 and 1 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1191391-91:
(9*1)+(8*1)+(7*9)+(6*1)+(5*3)+(4*9)+(3*1)+(2*9)+(1*1)=159
159 % 10 = 9
So 1191391-91-9 is a valid CAS Registry Number.

1191391-91-9Relevant articles and documents

Toward the Stereoselective Synthesis of Arthrobotrisin A: Fragment Synthesis and Coupling Studies

Kumar, Rayala Naveen,Kumar, Nandigama Satish,Meshram, Harshadas M.

, p. 1046 - 1050 (2017)

A route towards the stereocontrolled synthesis of arthrobotrisin A based on a Nozaki-Hiyama-Kishi (NHK) coupling strategy was developed. Highlights of the fragment synthesis include enzyme-catalyzed kinetic resolution, Negishi carbometalation-iodination, quinone formation through oxidation with hypervalent iodine, chiral oxazaborolidine-catalyzed asymmetric Diels-Alder reaction with cyclopentadiene, regio- and stereoselective epoxidation, Noyori reduction, retro-Diels-Alder reaction, diastereoselective Luche reduction, and, finally, a Nozaki-Hiyama-Kishi (NHK) coupling of the vinyl iodide fragment.

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