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3-bromo-2,2-diphenyl-chroman-4-one is a chemical compound with the molecular formula C20H15BrO2. It is a derivative of chroman-4-one, featuring a 3-bromo substituent and two phenyl groups attached to the 2-position. 3-bromo-2,2-diphenyl-chroman-4-one is characterized by its aromatic structure and bromine atom, which may contribute to its potential applications in various chemical and pharmaceutical industries. Due to its complex structure, it is essential to handle 3-bromo-2,2-diphenyl-chroman-4-one with care and follow proper safety protocols.

4805-75-8

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4805-75-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 4805-75-8 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,8,0 and 5 respectively; the second part has 2 digits, 7 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 4805-75:
(6*4)+(5*8)+(4*0)+(3*5)+(2*7)+(1*5)=98
98 % 10 = 8
So 4805-75-8 is a valid CAS Registry Number.

4805-75-8Upstream product

4805-75-8Relevant academic research and scientific papers

Photolysis of 3-bromochroman-4-ones

Consuelo Jiménez,Miranda, Miguel A.,Tormos, Rosa

, p. 339 - 347 (2007/10/03)

Photolysis of 3-bromochroman-4-ones (1a-f) leads to debrominated chromanones (2a-f) and chromones (3a-f) as major products. Their formation is accounted for in terms of primary cleavage of the carbon halogen bond to give α-carbonyl radicals (I) and/or cations (II). In the case of the 2,2-disubstituted compounds (1d-f), intermediates (II) undergo rearrangement with 1,2-shift of the phenyl or benzyl substituent prior to deprotonation. Minor by-products are the pentacyclic pyrone (4e) or 2-methylchromone (3a) (starting from 1e and 1f, respectively).

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