86336-41-6

Upstream product

• 628-89-7 2-(2-Chloroethoxy)ethanol 
• 62-53-3 aniline 
• 16427-44-4 2-methoxyethyl methanesulfonate 
• 120-07-0 2,2'-(phenylimino)bis[ethanol] 

Downstream Products

• 864962-40-3 4-{bis-[2-(2-hydroxyethoxy)ethyl]amino}benzaldehyde 
• 864962-41-4 C₂₉H₃₅NO₉S₂ 
• 864962-42-5 (C₆H₃CH₂)4(OCH₂CH₂OCH₂CH₂N(C₆H₄CHO)CH₂CH₂OCH₂CH₂O)2 

Relevant academic research and scientific papers

Functional magnetic mesoporous silica microparticles capped with an azo-derivative: A promising colon drug delivery device

Magnetic micro-sized mesoporous silica particles were used for the preparation of a gated material able to release an entrapped cargo in the presence of an azo-reducing agent and, to some extent, at acidic pH. The magnetic mesoporous microparticles were loaded with safranin O and the external surface was functionalized with an azo derivative 1 (bearing a carbamate linkage) yielding solid S1. Aqueous suspensions of S1 at pH 7.4 showed negligible safranin O release due to the presence of the bulky azo derivative attached onto the external surface of the inorganic scaffold. However, in the presence of sodium dithionite (azoreductive agent), a remarkable safranin O delivery was observed. At acidic pH, a certain safranin O release from S1 was also found. The pH-triggered safranin O delivery was ascribed to the acid-induced hydrolysis of the carbamate moiety that linked the bulky azo derivatives onto the mesoporous inorganic magnetic support. The controlled release behavior of S1 was also tested using a model that simulated the gastro intestinal tract.

Silver Ion Selective Extraction with Dithiaza-, Tetrathiaza-, and Tetrathiadiazacrown Ether Derivatives

Dithiazacrown, tetrathiazacrown, and two tetrathiadiazacrown ether derivatives, bearing a phenyl group on each nitrogen atom at the periphery, were synthesized, and the solvent extractions of some transition metal ions with these compounds were carried out using an H2O-1,2-dichloroethane system.All of the thiazacrown compounds employed exhibited Ag+ selectivity, and formed 1:1:1 complexes of Ag+ : ligand : laurate ion as a counter anion to be extracted into a 1,2-dichloroethane solution.The extractabilities (extraction constants, Kex) for Ag+ decreased in the order: 7,16-diphenyltetrathia-7,16-diaza-18-crown-6 (3) (log Kex = 1.18+/-0.13) > 13-phenyltetrathia-13-aza-15-crown-5 (2) (0.75+/-0.09) > 7-phenyldithia-7-aza-9-crown-3 (1) (-0.47+/-0.06)>13, 16-diphenyltetrathia-13,16-diaza-18-crwon-6 (4) (-0.62+/-0.16).