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128352-94-3

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128352-94-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 128352-94-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,8,3,5 and 2 respectively; the second part has 2 digits, 9 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 128352-94:
(8*1)+(7*2)+(6*8)+(5*3)+(4*5)+(3*2)+(2*9)+(1*4)=133
133 % 10 = 3
So 128352-94-3 is a valid CAS Registry Number.

128352-94-3Relevant articles and documents

A convenient synthesis of 1-acyl indolizines by 1,3-dipolar cycloaddition reactions of pyridinium ylides and α,β-unsaturated aldehydes or ketones in the presence of tetrakis-pyridine cobalt dichromate

Zhang, Xuechun,Cao, Weili,Wei, Xudong,Hu, Hongwen

, p. 1395 - 1403 (2007/10/03)

In the presence of tetrakispyridine cobalt dichromate (CoPy4(HCrO4)2), pyridinium ylides and α,β-unsaturated aldehydes or ketones undergo 1,3-dipolar cycloaddition reactions followed by in situ aromatization to give 1-acyl

Polarized Ethylene. V. Synthesis of 1-Substituted Indolizine, Pyrazolopyridine, and Their Related Compounds Using Methoxyethylene Derivatives

Tominaga, Yoshinori,Ichihara, Yuichi,Mori, Tomoko,Kamio, Chizuko,Hosomi, Akira

, p. 263 - 268 (2007/10/02)

The reaction of pyridinium or isoquinolinium N-ylides with methoxy-substituted ethylenes gave the corresponding indolizine and pyrroloisoquinoline derivatives bearing acetyl, aroyl, cyano, ester group at the 1-position in one step.Pyrazolopy

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