Antistatic Polymer Layers Applied from Aqueous Compositions to Photographic Materials

A synthetic route to 1-(4-boronobenzyl)-1H-pyrrole

“…In conclusion, a variety of methods have been investigated to synthesise 1-(4-boronobenzyl)-1H-pyrrole (10). It is clear based on the results reported here that the introduction of the boronate group, late in the reaction, is the most effective method for the preparation of this compound (Scheme 4) due to the lack of an adequate method for the removal of the pinacol protecting group from 5 (Schemes 2 and 3).…”

“…Pyrrole/pyrrole derivatives have been investigated for a variety of uses which include batteries, [1][2][3] an anti-corrosion film, [4][5][6] photoconductors, 6,7 conducting polymers, [1][2][3]8 electromagnetic shielding materials, 9 membranes, 10,11 ionexchange chromatography resins, 12 modified electrodes for enantioselective recognition, 13 electrosynthesis, [14][15][16] displays, 17 tissue engineering scaffolds, 18,19 neural probes, 20 drug delivery devices, 21 biosensors [22][23][24] and sensors. 25 The preparation of N-substituted pyrroles traditionally has involved deprotonation of the 1-position of the pyrrole ring with Na, K [26][27][28] or n-BuLi 7,8 under nitrogen in a solution of tetrahydrofuran (TFH) or under phase transfer conditions with t-BuOK 29 or NaOH 30 followed by reaction of the alkali salt of pyrrole, with an equivalent amount of acyl or alkyl halide (Scheme 1(a)).…”

“…In an attempt to combine the thin film forming properties of pyrroles 25 with our interest in boronates 35,36 as receptors and sensors, 37,38 we now report strategies directed to the synthesis of 1-(4-boronobenzyl)-1H-pyrrole (10).…”