Chemistry of 1,2-allenyl/propargyl metal species. A personal account*
Sheng-Ming Ma and Ai-Bin Zhang
Laboratory of Organometallic Chemistry, Shanghai Institute
of Organic Chemistry, Chinese Academy of Sciences, 354 Fenglin Lu, Shanghai
200032, P. R. China
Abstract: The Pd (0) -catalyzed coupling reaction of aryl and
electron-deficient alkenyl halides with the organozinc reagents formed
by the subsequent treatment of 1-phenylalk-1-ynes with n-BuLi and ZnBr2
with or without a catalytic amount of HgCl2 was studied.
Both the allene-formation- and the alkyne-formation-type coupling reactions
were observed, depending on the structures of organic halides and 1-arylalk-1-ynes.
* Lecture presented at the XIXth International Conference
on Organometallic Chemistry (XIX ICOMC) , Shanghai, China, 23-28 July
2000. Other presentations are published in this issue, pp. 205-376.
** Corresponding author
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