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Heptanamide, N-(4-methylphenyl)- is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

20172-34-3

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20172-34-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 20172-34-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,0,1,7 and 2 respectively; the second part has 2 digits, 3 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 20172-34:
(7*2)+(6*0)+(5*1)+(4*7)+(3*2)+(2*3)+(1*4)=63
63 % 10 = 3
So 20172-34-3 is a valid CAS Registry Number.

20172-34-3Relevant articles and documents

Direct amide bond formation from carboxylic acids and amines using activated alumina balls as a new, convenient, clean, reusable and low cost heterogeneous catalyst

Ghosh, Sabari,Mukhopadhyay, Chhanda,Bhaumik, Asim,Mondal, John,Mallik, Amit,Sengupta, Sumita

, p. 3220 - 3229,10 (2020/09/16)

For the first time, we have used activated alumina balls (3-5 mm diameter) for amide synthesis from carboxylic acids (unactivated) and amines (unactivated) under neat reaction conditions that produce no toxic by-products and has the advantages of being low-cost, easily available, heterogeneous, reusable and environmentally benign with no troublesome/hazardous disposal of the catalyst.

Catalytic metathesis of simple secondary amides

Bell, Christen M.,Kissounko, Denis A.,Gellman, Samuel H.,Stahl, Shannon S.

, p. 761 - 763 (2007/10/03)

(Chemical Equation Presented) Trading places: The metathesis of secondary amides through a transacylation mechanism has been achieved by employing catalytic quantities of an organic imide and a Bronsted base (see scheme). Equilibrium-controlled exchange between various amide pairs is demonstrated for substrates bearing N-alkyl and N-aryl substituents.

Efficient microwave access to polysubstituted amidines from imidoylbenzotriazoles

Katritzky, Alan R.,Cai, Chunming,Singh, Sandeep K.

, p. 3375 - 3380 (2007/10/03)

Microwave reactions of primary and secondary amines with imidoylbenzotriazoles 6a-w gave diversely substituted amidines 7a-Aa in 76-94% yields. Convenient preparations of a variety of amides 5a-Ab (87-96%) and imidoylbenzotriazoles 6a-w (56-95%) have also been developed using microwave irradiation under mild conditions and short reaction times. These results demonstrate further the advantages of microwave synthesis and introduce a new application of imidoylbenzotriazoles in the preparation of polysubstituted amidines.

Catalytic transamidation and amide metathesis under moderate conditions

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Page 3; Sheet 5, (2008/06/13)

Disclosed is a method of manipulating the carboxamide functionality in a catalytic manner. The method includes the steps of reacting amides with or without amines in the presence of various types of metal catalysts, at a temperature of about 250° C. or less.

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