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20805-85-0

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20805-85-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 20805-85-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,0,8,0 and 5 respectively; the second part has 2 digits, 8 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 20805-85:
(7*2)+(6*0)+(5*8)+(4*0)+(3*5)+(2*8)+(1*5)=90
90 % 10 = 0
So 20805-85-0 is a valid CAS Registry Number.

20805-85-0Downstream Products

20805-85-0Relevant articles and documents

One-step Synthesis of Cyclic Compounds by Electrochemical Reduction of Unsaturated Compounds in the Presence of Dielectrophiles

Degrand, Chantal,Compagnon, Paul-Louis,Belot, Gerard,Jacquin, Dominique

, p. 1189 - 1196 (2007/10/02)

The one-step synthesis of cyclic compounds is achieved in a few cases by electroreduction of unsaturated compounds in DMF, at a mercury pool cathode, in the presence of a more difficulty reducible dielectrophile.Unsaturated compounds include activated olefins, aromatic Schiff bases, ketones, and azo, nitroso, and nitro compounds.Four dielectrophiles are used; they are tri- or tetramethylene bromide, succinyl chloride, and 4-bromobutyryl chloride.The electrochemical synthesis of derivatives of cyclohexane, piperidine, pyrrolidine, hexahydropyridazine, tetrahydropyridazinone, tetrahydropyridazinedione, tetrahydrooxazine, isoxazolidine, and spirolactone can be succesfully performed.Their yields range from 8 to 78percent depending on competitive reactions.Results of chemical reduction by alkali metals and electrochemical reduction are compared.

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