The reaction efficiency was greatly enhanced with the yield reaching to 88.2% when the CaO was modified by
benzyl bromide in a simple way.
Potassium carbonate (2.76 g, 20.0 mmol), tetr[alpha]-n-butylammonium fluoride (0.300 mmol, 1.0 mol/L in THF), and
benzyl bromide (1.86 g, 10.9 mmol, 1.30 mL) were added to a solution of 4-bromo3,5-dimethylphenol (8) (2.00 g, 9.95 mmol) in acetone (20 mL).
In the case of an equimolar or 2/1 ratio of protected hydrazine and
benzyl bromide, relatively poor yields ranging from 13% to 30% were obtained at room temperature.
In general, the thio-substituted nucleobase reaction of 6-mercaptopurine with
benzyl bromide should be carried out with the use of triethylamine.
Reaction of polycondensation
benzyl bromide with furfural was studied by chemical and physical methods.
Since MBT is a mono-functional nucleophile, it will react with the
benzyl bromide sites forming nonreactive mercaptobenzothiazyl benzyl sulfides.
Benzyl bromide and other halogenated reagents were purchased from several commercial sources.
Contract awarded for
Benzyl bromide lauryl dimethyl ammonium 0.16%.
The effect of
benzyl bromide (BzBr) groups in BIMS on adhesion to nylon and IR will be discussed in this work.
Contract notice: Acquisition of protective articles cervical smear for the control of nuclear contamination and ampoules of
benzyl bromide.
The very reactivity nature of the
benzyl bromide functionality permits curing to proceed by a variety of paths.
The IR spectra of the starting polymer and final products also indicate the disappearance of
benzyl bromide absorbance at 615 [cm.sup.-1] and the appearance of benzylic ester absorbance at carbonyl region of 1723 [cm.sup.-1].
