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20850-13-9

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20850-13-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 20850-13-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,0,8,5 and 0 respectively; the second part has 2 digits, 1 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 20850-13:
(7*2)+(6*0)+(5*8)+(4*5)+(3*0)+(2*1)+(1*3)=79
79 % 10 = 9
So 20850-13-9 is a valid CAS Registry Number.

20850-13-9Relevant articles and documents

Organocatalytic Synthesis of Oxazolines and Dihydrooxazines from Allyl-Amides: Bypassing the Inherent Regioselectivity of the Cyclization

Theodorou, Alexis,Triandafillidi, Ierasia,Kokotos, Christoforos G.

supporting information, p. 951 - 957 (2018/01/22)

A selective and efficient methodology for the construction of either oxazolines or dihydrooxazines from the corresponding allyl-amides is reported. Bypassing the inherent selectivity of the cyclization and depending on the substitution pattern of the substrate, a selective epoxidation-cyclization was developed leading to either the five-membered or the six-membered ring, upon simple and complementary reaction conditions. The cyclization products were obtained in good to excellent yields and high selectivities. (Figure presented.).

Correction to: Rhodium/yanphos-catalyzed asymmetric interrupted intramolecular hydroaminomethylation of trans-1,2-disubstituted alkenes (J. Am. Chem. Soc. (2016) 138 (9017?9020) (DOI: 10.1021/jacs.6b03596)

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supporting information, p. 4230 - 4230 (2017/03/30)

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Thieno[2,3-d]pyrimidinedione derivatives as antibacterial agents

Dewal, Mahender B.,Wani, Amit S.,Vidaillac, Celine,Oupicky, David,Rybak, Michael J.,Firestine, Steven M.

experimental part, p. 145 - 153 (2012/07/28)

Several thieno[2,3-d]pyrimidinediones have been synthesized and examined for antibacterial activity against a range of Gram-positive and Gram-negative pathogens. Two compounds displayed potent activity (2-16 mg/L) against multi-drug resistant Gram-positiv

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