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349404-17-7

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349404-17-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 349404-17-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,4,9,4,0 and 4 respectively; the second part has 2 digits, 1 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 349404-17:
(8*3)+(7*4)+(6*9)+(5*4)+(4*0)+(3*4)+(2*1)+(1*7)=147
147 % 10 = 7
So 349404-17-7 is a valid CAS Registry Number.

349404-17-7Downstream Products

349404-17-7Relevant articles and documents

Highly efficient preparation of amides from aminium carboxylates using N-(p-toluenesulfonyl) imidazole

Behrouz, Somayeh,Rad, Mohammad Navid Soltani,Forouhari, Elham

, p. 101 - 106 (2016)

Treatment of aminium carboxylates with N-(p-toluenesulfonyl)imidazole in the presence of triethylamine in DMF at 100 °C afforded the corresponding amides in good to excellent yields. N-(p-Toluenesulfonyl)imidazole proved to be a highly efficient coupling reagent for the preparation of numerous structurally diverse primary, secondary and tertiary amides.

Zirconium catalyzed amide formation without water scavenging

Lundberg, Helena,Tinnis, Fredrik,Adolfsson, Hans

, (2019/07/31)

A scalable homogeneous metal-catalyzed protocol for direct amidation of carboxylic acids is presented. The use of 2–10?mol% of the commercially available Zr(Cp)2(OTf)2·THF results in high yields of amides at moderate temperature, using an operationally convenient reaction protocol that circumvents the use of water scavenging techniques.

N-Heterocyclic carbene-based well-defined ruthenium hydride complexes for direct amide synthesis from alcohols and amines under base-free conditions

Kim, Kunsoon,Kang, Byungjoon,Hong, Soon Hyeok

, p. 4565 - 4569 (2015/06/08)

Readily synthesized, well-defined N-heterocyclic carbene-based ruthenium(II) hydride complexes were developed for amide synthesis from alcohols and amines under base-free conditions. Diverse amides were synthesized in fair-to-excellent yields. In the case of secondary amines, where direct dehydrogenative amidation is not feasible, a catalytic amount of a base was required to promote the transamidation of esters, which are byproducts of alcohol dimerization.

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