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32437-49-3

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32437-49-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 32437-49-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,2,4,3 and 7 respectively; the second part has 2 digits, 4 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 32437-49:
(7*3)+(6*2)+(5*4)+(4*3)+(3*7)+(2*4)+(1*9)=103
103 % 10 = 3
So 32437-49-3 is a valid CAS Registry Number.

32437-49-3Relevant articles and documents

Catalyst-Free Synthesis of Benzofuran Derivatives from Cascade Reactions between Nitroepoxides and Salicylaldehydes

Ranjbari, Mohammad A.,Tavakol, Hossein

, p. 4756 - 4762 (2021/04/02)

Different benzofuran derivatives are synthesized via a catalyst-free reaction between nitroepoxides and salicylaldehydes. In the employed methodology, K2CO3 and DMF have been used at 110 °C, and the reactions were completed after 12 h in 33-84% yields. Th

Synthesis of heterocycles with MF/Al2O3 base-systems: 2-arylbenzofuranes and 2,3-diarylisoquinolin-1(2H)-ones

Hellwinkel,Goke

, p. 1135 - 1141 (2007/10/02)

2-Benzyloxybenzaldehydes, -acetophenones and -benzophenones substituted in the benzyl part with electron-withdrawing groups, cyclize easily to 2-arylbenzofuranes by using a standardized KF- or CsF-Al2O3 base system. An efficient one-pot synthesis for 2,3-diarylisoquinolin-1(2H)-ones is possible by reacting a variety of arene carbaldehyde anils with phthalides under the same reaction conditions.

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