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3-benzoyl-N1,N5-ditosyl-3-azapentane-1,5-diamine is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

77429-98-2

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77429-98-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 77429-98-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,7,4,2 and 9 respectively; the second part has 2 digits, 9 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 77429-98:
(7*7)+(6*7)+(5*4)+(4*2)+(3*9)+(2*9)+(1*8)=172
172 % 10 = 2
So 77429-98-2 is a valid CAS Registry Number.

77429-98-2Relevant academic research and scientific papers

Preparation of hexaaza and heptaaza macrocycles functionalized with a single aminoalkyl pendant arm

Zhang, Zhibo,Mikkola, Satu,Loennberg, Harri

, p. 854 - 858 (2007/10/03)

A practical and reproducible route for the preparation of 1,4,7,10,13,16,19-heptaazacyclohenicosane (1), 1,4,7,10,13,16-hexaazacyclooctadecane (2), and 1,4,7,10,13,17-hexaazacycloicosane (3) bearing a single N-(2-amino-ethyl) pendant arm has been develope

Synthesis of Selectively Protected Tri- and Hexaamine Macrocycles

Martin, Andrea E.,Ford, Thomas M.,Bulkowski, John E.

, p. 412 - 415 (2007/10/02)

A general route to tri- and hexaamine macrocycles containing selectively protected diethylenetriamine units has been developed.Condensation of the N'-benzoyl-N,N"-bis(p-tolylsulfonyl)diethylenetriamine N,N"-disodium salt with bissulfonate esters of two-, four-, and six-carbon diols at high reactant concentrations gave the corresponding 9- and 18- (85percent and 1percent), 11- and 22- (30percent and 20percent), and 13- and 26- (56percent and 17percent) membered tri- and hexaamine macrocycles, respectively.The benzoyl group was selectively removed with potassium tert-butoxide in ca. 90percent yield, and the macrocycles were conveniently separated by chromatography.Details of the synthetic procedures and characterization of the new selectively protected tri- and hexaamine macrocycles are described.

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