99142-42-4

Upstream product

• 112-57-2 N-(2-aminoethyl)-N'-{2-[(2-aminoethyl)amino]ethyl}ethane-1,2-diamine 
• 98-59-9 p-toluenesulfonyl chloride 
• 4556-90-5 N-(2-bromo-ethyl)-4-methyl-benzenesulfonamide 
• 4403-78-5 ditosylethylenediamine 

Downstream Products

• 124199-97-9 3,6,9,12,15-Pentakis-(toluene-4-sulfonyl)-3,6,9,12,15-pentaaza-bicyclo[15.3.1]henicosa-1⁽²⁰⁾,17⁽²¹⁾,18-triene-21-carboxylic acid methyl ester 
• 107010-91-3 1,4,7,10,13,16,19,22,25,28-decakis(p-tolylsulfonyl)-1,4,7,10,13,16,19,22,25,28-decaazacyclotriacontane 
• 107010-90-2 3,6,9,12,15-pentakis(p-tolylsulfonyl)-3,6,9,12,15-pentaazaheptadecane-1,17-diol 
• 237424-12-3 2,5,8,11,14-pentakis(p-tolylsulfonyl)-2,5,8,11,14-pentaaza[15](2,5)thiophenophane 
• 107035-78-9 O,O'-bis(methylsulfonyl)-3,6,9,12,15-pentakis(p-tolylsulfonyl)-3,6,9,12,15-pentaazaheptadecane-1,17-diol 

Relevant academic research and scientific papers

Polyaza metacyclophanes as ditopic anion receptors

Five macrocyclic polyaza metacyclophanes L1-L5 prepared by dipode coupling of the tosylated precursors have been studied. The basicity of the ligands has been measured potentiometrically and their ability to complex halides and perch

Synthesis and Characterization of Macrocyclic Polyaza(2,5)pyridinophanes Possessing Vitamin B6 Functionality

Series of macrocyclic polyaza(2,5)pyridinophanes (poly = tri, tetra, penta; m = 9, 12, 15) (8-10) and polyazaparacyclophanes (11-13) were synthesized in excellent yields by the reaction of dichloropyridoxine derivatives (4) and α,α'-dibromo-p-xylene (5), respectively, with a series of 1,2-ethanediamine derivatives (1-3).These phanes were characterized on the basis of 1H NMR spectra.The methyl group at C6 of the pyridoxine moiety (a-series) revealed restricted rotation for all bridge sizes (m = 9-15).In 8-10 without the methyl group (b-series), m = 12 was the boundary between restricted and free rotation.In series 11-13, only 11 (m = 9) showed restricted rotation.Atomic group equivalence was discussed terms of boundary restricted rotation and an empirical rule for the prediction of the relationship between the bridge size and restricted rotation was proposed.

Bifunctionalization of α,ω-Sulphonamides via Kinetically Controlled Reaction of α,ω-Bis(N-nitrososulphonamides)

α,ω-Bis(N-nitrososulphonamides) in hot benzene were converted into α,ω-disulphonates and bifunctional α-sulphonate-ω-sulphonamides, in good yields, by intramolecular N-nitrososulphonamide-sulphonate rearrangement.