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101716-49-8

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101716-49-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 101716-49-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,1,7,1 and 6 respectively; the second part has 2 digits, 4 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 101716-49:
(8*1)+(7*0)+(6*1)+(5*7)+(4*1)+(3*6)+(2*4)+(1*9)=88
88 % 10 = 8
So 101716-49-8 is a valid CAS Registry Number.

101716-49-8Downstream Products

101716-49-8Relevant articles and documents

Boric Acid Catalyzed Direct Amidation between Amino-Azaarenes and Carboxylic Acids

Yun, Fan,Cheng, Chunhui,Zhang, Jing,Li, Jingxuan,Liu, Xia,Xie, Rui,Tang, Pingwah,Yuan, Qipeng

, p. 1583 - 1596 (2017)

A novel and facile boric acid catalyzed direct amidation between amino-azaarene compounds and carboxylic acids has been developed. The amidation proceeded cleanly and provided good to excellent yields of the desired amides. Boric acid is a green and inexpensive catalyst. We have also found that N,N,N′,N′-tetramethylpropane-1,3-diamine acted as an additive accelerating this boric acid catalyzed amidation. A mixed acid anhydride is postulated to be the active intermediate responsible for this successful amidation. This direct amidation is an atom- and step-economical reaction.

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