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90917-82-1

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90917-82-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 90917-82-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,0,9,1 and 7 respectively; the second part has 2 digits, 8 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 90917-82:
(7*9)+(6*0)+(5*9)+(4*1)+(3*7)+(2*8)+(1*2)=151
151 % 10 = 1
So 90917-82-1 is a valid CAS Registry Number.

90917-82-1Relevant articles and documents

Regioselective Formal [3+2] Cycloadditions of Urea Substrates with Activated and Unactivated Olefins for Intermolecular Olefin Aminooxygenation

Wu, Fan,Alom, Nur-E,Ariyarathna, Jeewani P.,Na?, Johannes,Li, Wei

supporting information, p. 11676 - 11680 (2019/07/31)

A new class of intermolecular olefin aminooxygenation reaction is described. This reaction utilizes the classic halonium intermediate as a regio- and stereochemical template to accomplish the selective oxyamination of both activated and unactivated alkenes. Notably, urea chemical feedstock can be directly introduced as the N and O source and a simple iodide salt can be utilized as the catalyst. This formal [3+2] cycloaddition process provides a highly modular entry to a range of useful heterocyclic products with excellent selectivity and functional-group tolerance.

2,3,6,7-Tetrahydro-2-thioxo-4H-oxazolo[3,2-a]-1,3,5 triazin-4-ones

-

, (2008/06/13)

A compound of the formula STR1 wherein R1 is phenyl or substituted phenyl when R2 is hydrogen or lower alkyl; and R2 is phenyl or substituted phenyl when R1 is hydrogen or lower alkyl. These compounds are useful as anti-inflammatory agents.

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