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155878-90-3

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155878-90-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 155878-90-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,5,8,7 and 8 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 155878-90:
(8*1)+(7*5)+(6*5)+(5*8)+(4*7)+(3*8)+(2*9)+(1*0)=183
183 % 10 = 3
So 155878-90-3 is a valid CAS Registry Number.

155878-90-3Downstream Products

155878-90-3Relevant articles and documents

Preparation of new 2,4-disubstituted oxazoles from N-acylaziridines

Eastwood, Frank W.,Perlmutter, Patrick,Yang, Qi

, p. 35 - 42 (2007/10/03)

The efficiency of the ring enlargement of 2-substituted N-acylaziridines to dihydrooxazoles followed by nickel peroxide oxidation to give 2,4-disubstituted oxazoles as a synthetic route is examined. Sodium iodide-promoted ring enlargements work well for N-acylaziridines bearing electron-donating 2-substituents. For N-acylaziridines bearing electron-withdrawing 2-substituents, the best results are obtained using acid-promoted rearrangement.

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