Jy. Zhou et al., LEAD-PROMOTED BARBIER-TYPE REACTION OF ALDEHYDES WITH PROPARGYL BROMIDES IN AQUEOUS-MEDIA, Chinese journal of chemistry, 15(4), 1997, pp. 361-365
This paper reports that the reaction of the propargyl bromides with al
dehydes promoted by powdered lead in aqueous media. The selectivity an
d possible mechanism of these reactions are discussed. The yields of p
roducts for reaction of propargyl bromide are 31 similar to 71%. The r
atios of allenyl alcohol and homopropargyl alcohol are 1:1.5 to 1:3. T
he product for reaction of phenyl propargyl bromide is allenyl alcohol
and the yields are 52 similar to 84%.