Cas 141089-95-4,(RS)-6-acetyl-4-benzyl-2-methyl-2H-1,4-thiazin-3(4H)-one

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Check Digit Verification of cas no

The CAS Registry Mumber 141089-95-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,1,0,8 and 9 respectively; the second part has 2 digits, 9 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 141089-95:
(8*1)+(7*4)+(6*1)+(5*0)+(4*8)+(3*9)+(2*9)+(1*5)=124
124 % 10 = 4
So 141089-95-4 is a valid CAS Registry Number.

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141089-95-4Relevant academic research and scientific papers

Influence of Phenylthio and Alkylthio Substituents on the Reactivity of 1-Oxa-1,3-butadienes in Hetero Diels-Alder Reactions

Tietze, Lutz F.,Fennen, Jens,Wichmann, Juergen

, p. 1507 - 1512 (2007/10/02)

The synthesis of the cyclic enamino ketones 1-3 bearing an alkylthio or an phenylthio group and their reactivity in hetero Diels-Alder reactions with enol ethers is described.Only compound 3 with an phenylthio group undergoes a cycloaddition with 16a-d to afford the diastereomeric adducts 17a-d and 18a-d.To estimate the activation by a phenylthio and alkylthio group semiempirical PM3/RHF calculations of the frontier orbital energies and coefficients of different enamine carbaldehydes have been performed.Key Words: Enamino ketones / 1,4-Thiazines / Hetero Diels-Alder reactions / Pyrans, dihydro / Calculations, semiempirical

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