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3-phenylsulfonyl-2H-benzo[f]-2-chromenone is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

78440-57-0

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78440-57-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 78440-57-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,8,4,4 and 0 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 78440-57:
(7*7)+(6*8)+(5*4)+(4*4)+(3*0)+(2*5)+(1*7)=150
150 % 10 = 0
So 78440-57-0 is a valid CAS Registry Number.

78440-57-0Relevant academic research and scientific papers

Stereospecificity of diels-Alder reactions validated using Ab initio calculations: Synthesis of novel coumarin and phenanthridine derivatives

El-Shafei,Fadda,Abdel-Gawad,Youssif

experimental part, p. 2954 - 2972 (2009/12/03)

A new series of coumarin derivatives (2-5) was synthesized by reaction of phenylsulfonylacetonitrile (1) with 2-hydroxy-1-naphthaldehyde and/or salicyaldehyde. Compounds 3 and 5 were converted to the corresponding phenanthridine analogs 6 and 7, respectiv

Utility of sulphones in heterocyclic synthesis: Synthesis of some pyridine, chromene and thiophene derivatives

Fadda,Refat, Hala M.,Zaki

, p. 701 - 709 (2007/10/03)

Phenylsulfonylacetonitrile (1) when reacted with α,β-unsaturated nitriles (2a,b) and/or 2-hydroxynaphthaldehyde yields pyridine derivatives (3a,b) and / or the imino-chromene derivative (4) respectively. The behavior of (1) towards some α-halogenated compounds has been investigated.

Synthesis of 3-Coumaryl Phenyl Sulfones or Sulfoxides

Merchant, J.R.,,Shah, P.J.,

, p. 441 - 442 (2007/10/02)

An unambiguous synthesis of a number of 3-coumaryl phenyl sulfones or sulfoxides have been described which were obtained by the oxidation of the corresponding sulfides with hydrogen peroxide.The sulfides were prepared by the Perkin-Oglialore reaction of o-hydroxyaldehyde with the sodium salt of different S-phenyl thioacetic acids.The sulfones did not exhibit any appreciable antituberculous activity in the preliminary screening tests.

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