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"α,α'-bis(bis p-chlorophenyl-4,6 thiopyrannylidene-2) α,α-dithiobisacetate d'ethyle" is a complex organic compound with the chemical formula C20H14Cl4O4S4. It is a derivative of bisphenol A, featuring two p-chlorophenyl groups attached to a thiopyrannylidene moiety, which is then connected to an α,α-dithiobisacetate group. α,α'-bis(bis p-chlorophenyl-4,6 thiopyrannylidene-2) α,α-dithiobisacetate d'ethyle is known for its potential applications in the synthesis of certain types of polymers and as a chemical intermediate in the production of various industrial chemicals. Its structure is characterized by the presence of chlorine atoms, which can influence its reactivity and stability, and the dithiobisacetate group, which provides it with unique chemical properties. The compound's specific applications and properties are determined by its molecular structure and the functional groups it contains.

77643-26-6

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77643-26-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 77643-26-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,7,6,4 and 3 respectively; the second part has 2 digits, 2 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 77643-26:
(7*7)+(6*7)+(5*6)+(4*4)+(3*3)+(2*2)+(1*6)=156
156 % 10 = 6
So 77643-26-6 is a valid CAS Registry Number.

77643-26-6Downstream Products

77643-26-6Relevant academic research and scientific papers

COMPOSES SULFURES HETEROCYCLIQUES. XCIII (1). ACTION DU DIAZOACETATE D'ETHYLE ET DE DIAZOCETONES SUR LES THIOPYRANNETHIONES-2

Sauve, Jean-Pierre

, p. 582 - 587 (2007/10/02)

Ethyl diazoacetate reacts with 4,6-diarylthiopyran-2-thiones 1 giving diethyl α,α'-bis(4,6-diarylthiopyran-2-ylidene)-α,α'-dithioacetates 2 and traces of bis(thiopyran-2-ylidene) 3. We have never obtained the expected ethyl thiopyranylidene-acetate, but the disulfides 2, whose structures have been confirmed by NMR and IR spectra.With diazoacetone, in all cases, α-thiopyran-2-ylidene-acetone 4 is formed.According to the substituents of the thiopyran ring, the compounds 5, 6 and 7 are also obtained.Compounds 4, 5 and 6 are probably formed through a same thiiranne intermediate.Unsubstituted thiopyran-2-thione yields thiopyran-2-ylidene-acetone 4, the disulfide 6 and small quantities of thieno-1,2-dithiole-3-thione 7.With a large excess of diazoacetone, the reaction leads only to α-acetonylthio-α-thiopyranylidene-acetone 5. 3,5 Dialkylthiopyran-2-thiones only yield the corresponding thiopyranylideneacetone 4 whereas 4,6-diarylthiopyran-2-thiones give simultaneously all the compounds 3,4,5 and 6.With diazoacetophenone, α-(thiopyran-2-ylidene)acetophenone 8 is always the only product obtained, whatever the substituents of the thiopyran ring may be.

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