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1,1-Diethyl-2,2-diphenyldiphosphine disulfide is a chemical compound with the molecular formula C18H22P2S2. It is a disulfide derivative of 1,1-diethyl-2,2-diphenyldiphosphine, where two sulfur atoms are bonded to the phosphorus atoms, forming a disulfide bridge. 1,1-diethyl-2,2-diphenyldiphosphine disulfide is an organophosphorus compound and is often used as a ligand in coordination chemistry, particularly in the synthesis of transition metal complexes. It is also known for its potential applications in the development of new materials and catalysts. The compound is characterized by its stability and unique electronic properties, which arise from the presence of the phosphorus-sulfur bonds. It is typically synthesized through the reaction of 1,1-diethyl-2,2-diphenyldiphosphine with sulfur or a sulfur-containing reagent. Due to its complex structure and potential applications, 1,1-diethyl-2,2-diphenyldiphosphine disulfide is a subject of interest in the field of organophosphorus chemistry.

3305-81-5

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3305-81-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 3305-81-5 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 3,3,0 and 5 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 3305-81:
(6*3)+(5*3)+(4*0)+(3*5)+(2*8)+(1*1)=65
65 % 10 = 5
So 3305-81-5 is a valid CAS Registry Number.

3305-81-5Downstream Products

3305-81-5Relevant academic research and scientific papers

Rhodium-catalyzed P-P bond exchange reaction of diphosphine disulfides

Arisawa, Mieko,Yamada, Tomoki,Tanii, Saori,Kawada, Yuta,Hashimoto, Hisako,Yamaguchi, Masahiko

supporting information, p. 13580 - 13583 (2016/11/25)

A rhodium-catalyzed exchange reaction of diphosphine disulfides, a diphosphine oxide, and a diphosphine is developed. Various symmetric diphosphine disulfides containing alkyl and phenyl groups are exchanged, giving equilibrium mixtures, from which unsymmetric diphosphine disulfides are readily separated by silica gel chromatography. The resulting unsymmetric diphosphine disulfide is regioselectively added to an aldehyde.

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