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6,6'-bis(6H-dibenzothiopyran) is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

83345-84-0

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83345-84-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 83345-84-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,3,3,4 and 5 respectively; the second part has 2 digits, 8 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 83345-84:
(7*8)+(6*3)+(5*3)+(4*4)+(3*5)+(2*8)+(1*4)=140
140 % 10 = 0
So 83345-84-0 is a valid CAS Registry Number.

83345-84-0Downstream Products

83345-84-0Relevant academic research and scientific papers

N-Phehylsulphimide Formation and Rearrangement in the Thermal Reaction of Phenylnitrene with Sulphides

Benati, Luisa,Montevecchi, P. Carlo,Spagnolo, Piero

, p. 771 - 776 (2007/10/02)

Thermal reaction of phenyl azide (1) with thioanisole (2a), dimethyl sulphide (2b), and tetrahydrothiophen (2c) leads to the formation of 2-substituted anilines (3a-c) by Sommelet-Hauser rearrangement of the intermediate N-phenylsulphimides arising from phenylnitrene attack at the sulphur atom of (2a-c).Reaction with ethyl phenyl sulphide (2d) gives benzenesulphenanilide (8) and ethylene by cycloelimination of the resulting N-phenylsulphimide.Reaction with acyclic benzylic sulphides (2e-g) apparently leads only to the insertion products of phenylnitrene into benzylic C-H bond, presumably through Stevens rearrangement of the intermediate sulphimides, whereas Sommelet-Hauser rearrangement appears to compete favourably with Stevens rearrangement in the sulphimide resulting from reaction of phenylnitrene with the cyclic benzylic sulphide (2h).

Thermal Reaction of Phenylnitrene with Sulfides

Benati, Luisa,Grossi, Mario,Montevecchi, P. Carlo,Spagnolo, Piero

, p. 763 - 765 (2007/10/02)

Thermolysis of phenyl azide in the presence of sulfides bearing α-hydrogen atoms leads to the formation of significant amounts of 2-substituted anilines, presumably by Sommelet-Hauser type rearrangement of the intermediate N-phenylsulfimides.

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