But due to its slow
effect and an
unpleasant recovery
period, it has been
replaced, as an
anaesthetic, by other
compounds Alexander William
Williamson (1824–1904)
was born in London of
Scottish parents In
1849, he became
Professor of Chemistry
at University College,
London Rationalised 2023-24
216
Chemistry
O
CH –Br
3
Na +
Better results are obtained if the alkyl halide is primary