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124805-03-4

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124805-03-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 124805-03-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,4,8,0 and 5 respectively; the second part has 2 digits, 0 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 124805-03:
(8*1)+(7*2)+(6*4)+(5*8)+(4*0)+(3*5)+(2*0)+(1*3)=104
104 % 10 = 4
So 124805-03-4 is a valid CAS Registry Number.

124805-03-4Relevant articles and documents

Radical Cyclizations of Alkenyl-Substituted 4,5-Dihydro-1,3-thiazole-5-thiols

Jenny, Christjohannes von,Wipf, Peter,Heimgartner, Heinz

, p. 838 - 846 (2007/10/02)

Heating of 5-alkenyl- or 5-alkinyl-4,5-dihydro-1,3-thiazole-5-thiols of type 5 in the presence of a radical initiator gave dithiaspirobicycles in fair-to-excellent yield (Scheme 3).Under analogous conditions, the 4,5-dihydro-4-vinyl-1,3-thiazole-5-thiol 5d underwent a cyclization to give the annellated dithiabicycle 7 (Scheme 4).In this reaction, a minor product 8 was formed by an unknown reaction mechanism.The structure of 8 was established by X-ray crystallography.The starting 1,3-thiazole-5-thiols 5 have been synthesized by carbophilic alkylation of the C=S group of 1,3-thiazole-5(4H)-thiones with Grignard-reagents or alkylcuprates.The thiazolethiones were obtained by the reaction of 3-amino-2H-azirines with thiobenzoic acid followed by sulfurization and cyclization.The 4-benzyl derivative 1b was thermally rearranged via 1,3-benzyl migration to yield the benzyl (1,3-thiazol-5-yl) sulfide 11 (Scheme 5).

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