Group 13 sulfides hydroxylamines

Anion-exchange resins have also been prepared through the nitration of SDVB copolymers with sulfuric acid-nitric acid mixture followed by the reduction of nitro groups with sodium sulfide . Such resins containing —NHj groups have been further modified with ethylenimine or hydroxylamine Aminated polystyrene can be crosslinked with dichloroethane to give an anion-exchange resin... 

Heteroatomic nucleophiles which also have been shown to undergo addition across the 3,4-double bond of quinazolines 5 and with which the addition products 6 were isolated include the methoxide anionand sodium hydrogen sulfite.(For addition of sodium hydrogen sulfite and hydrazine at the 4-position of quinazoline 3-oxides with concomitant deoxygenation of the A(-oxide group, cf p 105.) Equilibrium and rate constants have been determined at 25 °C for the covalent addition of water, the bisulfite ion, hydroxylamine, urea, 2-sulfanylethanol, and hydrogen sulfide to the 3,4-bond of the quinazoline cation. ... 

Metals bound to Fe-Mn oxides determined together. Sulfide or sulfide-ocduded metals. Bound to free and readily soluble oxides. Calculated as difference between the total content and sum of other operational groups. Symbols HOAc, acetic add HO, oxalic acid NH4OAC, ammonium acetate NH4OJ, ammonium oxalate NHjOH, hydroxylamine used as NHjOHHCl NaOAc, sodium acetate DTP A, diethylenetriaminepentaacetic acid EDTA, efhylenediaminetetraacetic add (sodium salt) CBD, dtrate-bicarbonate-dithionite Hq, hydroquinone TEA, triethanolamine Fx, numbers of operational groups (fractions, species) of metals, as defined by the authors. In both procedures FI fraction is related to water soluble form of the elements. 

The intermediate iminium salts can also be transformed into functional groups other than carbonyls. Three common variants are quenching with hydrogen sulfide to yields thioaldehydes (13- 14), oxime formation with hydroxylamine followed by dehydration to yield nitriles (15—>16), and hydride reduction to yield dialkylamines (17—>18). ... 

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