2- Hydroxyethyl phenyl ethers from

The N-[/3-(o-chlorophenyl)-/3-hydroxyethyl] -isopropylamine obtained by the foregoing procedure was dissolved in about 3 liters of ether and dry hydrogen chloride gas was bubbled into the solution until it was saturated, whereupon the hydrochloride salt of N-[/3-(o-chloro-phenyl)-/3-(hydroxy)-ethyl] isopropylamine precipitated. The salt was separated from the ether by filtration, and was dissolved in two liters of anhydrous ethanol. The alcoholic solution was decolorized with charcoal and filtered. 

Segmented poly(ether urethanes) were synthesized from polypropylene glycol (PPG) and 4,4 methylene-bis(phenyl-isocyanate) (MDI), using l,l -bis(B-aminoethyl)ferrocene (1) and 1,1 -bis(B-hydroxyethyl)-ferrocene (2) as chain extenders. 

To a THF solution (15 ml) of tris 2-[MA -bis(2-tcrr-butyldimethylsiloxy)ethyl]sulfamoyl)phe-nyl)bismuthine (355 mg, 0.218 mmol) was added tetrabutylammonium fluoride (THF solution 1.35 ml, 1.35 mmol) at 0°C and the resulting mixture was stirred at room temperature for 3 h. Saturated aqueous NH4CI (15 ml) was added and the organic phase was removed by decantation. The aqueous phase was washed with ether (10 ml X 2) and then allowed to stand overnight. The deposit was filtered off, washed with water and recrystallized from 6% ethanol-water to yield tris 2-[/V,A -bis(2-hydroxyethyl)sulfamoyl]phenyl)bismuthine (125 mg, 61%), m.p. 202-204°C [98JCS(P1)2511]. 

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