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129609-47-8

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129609-47-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 129609-47-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,9,6,0 and 9 respectively; the second part has 2 digits, 4 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 129609-47:
(8*1)+(7*2)+(6*9)+(5*6)+(4*0)+(3*9)+(2*4)+(1*7)=148
148 % 10 = 8
So 129609-47-8 is a valid CAS Registry Number.

129609-47-8Downstream Products

129609-47-8Relevant articles and documents

Transaminations of Enaminones: A Synthesis of Tricyclic, N-Aryl, 1,2,3-Triazole-fused Pyridones

Chan, Tze-Ming,Friary, R.,Jones, H.,Schwerdt, J. H.,Seidl, V.,et al.

, p. 1135 - 1142 (2007/10/02)

1-Phenylmethyl- and 1-(4-methoxyphenylmethyl)-5-chloro-1,2,3-triazole-4-carbonyl chlorides acylated the pyrrolidine enamines of cyclopentanone and cyclohexanone, and the resulting enaminones underwent transaminations with aryl amines under acidic conditions.The products then cyclized under basic conditions to linearly fused, tricyclic 3-phenylmethyl- and 3-(4-methoxyphenylmethyl)-4-aryl-8-oxo-4,5,6,7-tetrahydrocyclopenta-1,2,3-triazolopyridines, and to 5,6,7,8-tetrahydro-4-aryl-3H-1,2,3-triazoloquinolin-9(4H)-ones.Similar transaminations afforded the related 8-phenyl- and 8-(3-chlorophenyl)-1,5,7,8-tetrahydro-1-(phenylmethyl)-4H-thieno-1,2,3-triazolopyridin-4-ones.Phase-transfer and catalytic hydrogenolyses of some of these intermediates furnished 4-aryl-8-oxo-4,5,6,7-tetrahydrocyclopenta-1,2,3-triazolopyridines and 4-aryl-5,6,7,8-tetrahydro-3H-1,2,3-triazoloquinoline-9(4H)-ones.The 3-(4-methoxyphenylmethyl)-4-aryl intermediates were sterically crowded.Two protons from the methoxyphenylmethylphenylmethylgroups were dramatically shielded because of anisotropic effects exerted by the 4-aryl substituents.

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