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Brom-(4-chlor-benzoyl)-methylen-triphenyl-phosphoran, also known as 4-chlorobenzoyl bromomethylenetriphenylphosphorane, is a complex organic compound with the chemical formula C25H18BrClOP. It is a phosphorus-containing reagent used in organic synthesis, particularly in the formation of carbon-carbon bonds through the Wittig reaction. This reaction involves the conversion of aldehydes or ketones into olefins, with the phosphorane acting as a nucleophile. The compound consists of a triphenylphosphorane core, with a bromine atom attached to a carbonyl carbon of a 4-chlorobenzoyl group, and a methylene bridge connecting the phosphorus to the carbonyl carbon. It is a valuable tool in the synthesis of various organic compounds, including pharmaceuticals and natural products, due to its ability to generate stable phosphorus ylides that can undergo [2+2] cycloadditions with carbonyl compounds.

3201-63-6

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3201-63-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 3201-63-6 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 3,2,0 and 1 respectively; the second part has 2 digits, 6 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 3201-63:
(6*3)+(5*2)+(4*0)+(3*1)+(2*6)+(1*3)=46
46 % 10 = 6
So 3201-63-6 is a valid CAS Registry Number.

3201-63-6Relevant academic research and scientific papers

PYROLYSIS OF α-HALOPHOSPHORANES -> HALOACETYLENES

Braga, Antoenio L.,Comasseto, Joaeo V.

, p. 2877 - 2884 (2007/10/02)

α-Halophosphoranes upon pyrolysis give haloacetylenes in moderate yields.

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