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.
and other halogenated reagents were purchased from several commercial sources.
The effect of benzyl bromide
(BzBr) groups in BIMS on adhesion to nylon and IR will be discussed in this work.
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].