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1448531-98-3

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1448531-98-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1448531-98-3 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,4,4,8,5,3 and 1 respectively; the second part has 2 digits, 9 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 1448531-98:
(9*1)+(8*4)+(7*4)+(6*8)+(5*5)+(4*3)+(3*1)+(2*9)+(1*8)=183
183 % 10 = 3
So 1448531-98-3 is a valid CAS Registry Number.

1448531-98-3Relevant articles and documents

Tandem Cu-catalyzed ketenimine formation and intramolecular nucleophile capture: Synthesis of 1,2-dihydro-2-iminoquinolines from 1-(o-acetamidophenyl) propargyl alcohols

Kumar, Gadi Ranjith,Kumar, Yalla Kiran,Kant, Ruchir,Reddy, Maddi Sridhar

supporting information, p. 1255 - 1260 (2014/06/24)

The copper-catalyzed ketenimine formation reaction of 1-(o-acetamidophenyl) propargyl alcohols with various sulfonyl azides is found to undergo a concomitant intramolecular nucleophile attack to generate 1,2-dihydro-2- iminoquinolines after aromatization (via elimination of acetyl and hydroxy groups) and tautomerization. The reaction produces 4-substituted and 3,4-unsubstituted title compounds in moderate to good yields under mild reaction conditions.

Metal-free synthesis of 1H-indole-2-carbaldehydes by N-iodosuccinimide- mediated cyclization of 1-(2′-anilinyl)prop-2-yn-1-ols in water. A formal synthesis of (R)-calindol

Kothandaraman, Prasath,Lauw, Sherman Jun Liang,Chan, Philip Wai Hong

, p. 7471 - 7480 (2013/08/23)

A N-iodosuccinimide (NIS)-mediated method to prepare 1H-indole-2- carbaldehydes efficiently from cycloisomerization of 1-(2-aminophenyl)prop-2-yn- 1-ols is described. The reaction is operationally straightforward and accomplished in good to excellent yiel

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