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138768-65-7

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138768-65-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 138768-65-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,8,7,6 and 8 respectively; the second part has 2 digits, 6 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 138768-65:
(8*1)+(7*3)+(6*8)+(5*7)+(4*6)+(3*8)+(2*6)+(1*5)=177
177 % 10 = 7
So 138768-65-7 is a valid CAS Registry Number.

138768-65-7Downstream Products

138768-65-7Relevant academic research and scientific papers

Arylation of amines and monoarylation of symmetrical diamines in the presence of brine solution with diheteroaryl halides

Verma, Sanjeev K.,Ghorpade, Ramarao,Kaushik

supporting information, p. 2645 - 2655 (2014/08/18)

A simple, scalable, ligand-free, and metal-free protocol for arylation of amines and monoarylation of symmetrical diamines with diheteroaryl halides in the presence of brine solution has been developed. The protocol has broad structural applicability for chemoselective monoarylation of a wide variety of symmetrical, cyclic, and acyclic aliphatic diamines. The protocol is also applicable for selective arylation of aliphatic amine in the presence of aromatic amine.

Chemospecific and ligand free CuI catalysed heterogeneous N-arylation of amines with diheteroaryl halides at room temperature

Verma, Sanjeev K.,Acharya,Kaushik

supporting information; experimental part, p. 1324 - 1327 (2011/04/16)

A ligand free, copper-catalyzed N-arylation reaction of amines with diheteroaryl halides in heterogeneous medium at room temperature has been developed. The protocol is very effective for low boiling amines and useful for amines available in aqueous solution. The reaction gives chemospecific arylation of amines with diheteroaryl halides in the mixture monoheteroaryl halides, diheteroaryl halides and carbocyclic aryl halides. The reaction is also chemospecific with respect to arylation of aliphatic amines. Monoarylated piperazines were also synthesized at room temperature following this protocol. The Royal Society of Chemistry 2011.

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