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41177-03-1

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41177-03-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 41177-03-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,1,1,7 and 7 respectively; the second part has 2 digits, 0 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 41177-03:
(7*4)+(6*1)+(5*1)+(4*7)+(3*7)+(2*0)+(1*3)=91
91 % 10 = 1
So 41177-03-1 is a valid CAS Registry Number.

41177-03-1Downstream Products

41177-03-1Relevant articles and documents

Ruthenium-Na2CO3-catalyzed one-pot synthesis of ring-hydrogenated carbamates from aromatic amines and organic carbonates under H2

Cho, Jin Ku,Kim, Hoon Sik,Kim, Yong Jin,Mishra, Vivek,Shin, Seung-Han,Suh, Young-Woong

, p. 82 - 90 (2014)

A facile and efficient one-pot procedure for the synthesis of ring hydrogenated carbamates from aromatic amine and alkylene carbonate under H2 gas pressure has been developed using a heterogeneous catalyst system comprising ruthenium and alkali metal carbonates. The effects of temperature, H2 pressure, catalyst (types of loaded metal and their supports), molar ratio of substrate/catalyst, and solvent were also investigated. Among the alkali metal carbonates, the sodium carbonate was found as best promoter for nucleophilic attack and ring-opening (NARO) reaction and thus increased the yield of ring hydrogenated carbamate up to 88% when using Ru/C as ring hydrogenation (RH) catalyst. This catalyst system could be reused at least five times without signi?cant loss of activity, which makes this process cost-effective and eco-friendly.

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