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134538-53-7

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134538-53-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 134538-53-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,4,5,3 and 8 respectively; the second part has 2 digits, 5 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 134538-53:
(8*1)+(7*3)+(6*4)+(5*5)+(4*3)+(3*8)+(2*5)+(1*3)=127
127 % 10 = 7
So 134538-53-7 is a valid CAS Registry Number.

134538-53-7Downstream Products

134538-53-7Relevant articles and documents

Palladium-catalyzed synthesis of substituted nitroolefins

Chang, Meng-Yang,Lin, Chung-Han,Tai, Hang-Yi

supporting information, p. 3194 - 3198 (2013/06/26)

A one-pot protocol toward several substituted nitroolefins 4 and 6 starting with substituted acetones 2 and 5 was described. A facile process was carried out for the triflation of substituted acetones 2 and 5 with triflic anhydride (Tf2O) under the basic condition (Cs2CO3) and then palladium-catalyzed cross-coupling of enol triflates 3 with NaNO 2 and BINAP in the presence of phase-transfer reagents (n-Bu 4NBr) under the refluxing 1,2-dimethoxyethane (DME) in acceptable yields.

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