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<div class=Section1>

<p class=MsoNormal style='margin-bottom:0cm;margin-bottom:.0001pt;line-height:
normal'><b><span style='font-size:14.0pt;font-family:"Times New Roman","serif"'>SEMINARIO
DE QUIMICA ORGANICA 2011<o:p></o:p></span></b></p>

<p class=MsoNormal style='margin-bottom:0cm;margin-bottom:.0001pt;line-height:
normal'><b><span style='font-size:16.0pt;font-family:"Times New Roman","serif";
color:#00B050'>Viernes 18 de noviembre, 11 hs<o:p></o:p></span></b></p>

<p class=MsoNormal style='margin-bottom:0cm;margin-bottom:.0001pt;line-height:
normal'><b><span style='font-size:12.0pt;font-family:"Times New Roman","serif"'>Aula
de Seminario, Departamento de Química Orgánica, FCEyN<o:p></o:p></span></b></p>

<p class=MsoNormal style='margin-bottom:0cm;margin-bottom:.0001pt;text-align:
justify;line-height:normal'><b><span style='font-size:12.0pt;font-family:"Times New Roman","serif"'><o:p>&nbsp;</o:p></span></b></p>

<p class=MsoNormal align=center style='margin-bottom:0cm;margin-bottom:.0001pt;
text-align:center;line-height:normal'><b><span style='font-size:16.0pt;
font-family:"Times New Roman","serif";color:#002060'>Prof. Samir Z. Zard<o:p></o:p></span></b></p>

<p class=MsoNormal align=center style='margin-bottom:0cm;margin-bottom:.0001pt;
text-align:center;line-height:normal'><b><span style='font-size:16.0pt;
font-family:"Times New Roman","serif";color:#002060'><o:p>&nbsp;</o:p></span></b></p>

<p class=MsoNormal align=center style='margin-bottom:0cm;margin-bottom:.0001pt;
text-align:center;line-height:normal'><b><span lang=EN-US style='font-size:
12.0pt;font-family:"Times New Roman","serif";color:#002060'>Laboratoire de
Synthèse Organique, Ecole Polytechnique, Palaiseau, 91128 France<o:p></o:p></span></b></p>

<p class=MsoNormal align=center style='margin-bottom:0cm;margin-bottom:.0001pt;
text-align:center;line-height:normal'><b><span lang=EN-US style='font-size:
12.0pt;font-family:"Times New Roman","serif";color:#002060'> zard@poly.polytechnique.fr<o:p></o:p></span></b></p>

<p class=MsoNormal style='margin-bottom:0cm;margin-bottom:.0001pt;text-align:
justify;line-height:normal'><span lang=EN-US style='font-size:12.0pt;
font-family:"Times New Roman","serif"'><o:p>&nbsp;</o:p></span></p>

<p class=MsoNormal align=center style='margin-bottom:0cm;margin-bottom:.0001pt;
text-align:center;line-height:normal'><b><span lang=EN-US style='font-size:
16.0pt;font-family:"Times New Roman","serif";color:#C00000'>Serendipity and
Design:<o:p></o:p></span></b></p>

<p class=MsoNormal align=center style='margin-bottom:0cm;margin-bottom:.0001pt;
text-align:center;line-height:normal'><b><span lang=EN-US style='font-size:
16.0pt;font-family:"Times New Roman","serif";color:#C00000'>Some New Reactions
for Organic Synthesis<o:p></o:p></span></b></p>

<p class=MsoNormal style='margin-bottom:0cm;margin-bottom:.0001pt;text-align:
justify;line-height:normal'><span lang=EN-US style='font-size:12.0pt;
font-family:"Times New Roman","serif"'><o:p>&nbsp;</o:p></span></p>

<p class=MsoNormal style='margin-bottom:0cm;margin-bottom:.0001pt;text-align:
justify;text-indent:35.4pt;line-height:150%'><span lang=EN-US style='font-size:
12.0pt;line-height:150%;font-family:"Times New Roman","serif"'><o:p>&nbsp;</o:p></span></p>

<p class=MsoNormal style='margin-bottom:0cm;margin-bottom:.0001pt;text-align:
justify;text-indent:35.4pt;line-height:150%'><span lang=EN-US style='font-size:
12.0pt;line-height:150%;font-family:"Times New Roman","serif"'>Our research
group is mostly concerned with the discovery and development of new reactions
and processes that could be useful in organic synthesis.  As is usually the
case in scientific research, the interplay between conjecture and chance
observation underlies much of our work. Unexpected events often bring a fresh lighting
to the system being examined and open doors hitherto unsuspected. Misconception
has thus played an important role by allowing us to uncover a number of new
radical and non radical reactions of some generality involving sulfur
compounds, acetylenes, oximes, and related derivatives: we simply followed the
logical consequences of our observations and went where the chemistry took us.
In this lecture, the story behind the discovery of some of these reactions will
be presented and the various mechanistic and synthetic implications will be
discussed.<sup> <o:p></o:p></sup></span></p>

<p class=MsoNormal style='margin-bottom:0cm;margin-bottom:.0001pt;text-align:
justify;text-indent:35.4pt;line-height:normal'><span lang=EN-US
style='font-size:12.0pt;font-family:"Times New Roman","serif"'><o:p>&nbsp;</o:p></span></p>

<p class=MsoNormal style='margin-bottom:0cm;margin-bottom:.0001pt;text-align:
justify;text-indent:35.4pt;line-height:normal'><span lang=EN-US
style='font-size:12.0pt;font-family:"Times New Roman","serif"'><o:p>&nbsp;</o:p></span></p>

<p class=MsoNormal style='margin-bottom:0cm;margin-bottom:.0001pt;text-align:
justify;text-indent:35.4pt;line-height:normal'><span lang=EN-US
style='font-size:12.0pt;font-family:"Times New Roman","serif"'><o:p>&nbsp;</o:p></span></p>

<p class=MsoNormal style='margin-bottom:0cm;margin-bottom:.0001pt;text-align:
justify;text-indent:35.4pt;line-height:normal'><span lang=EN-US
style='font-size:12.0pt;font-family:"Times New Roman","serif"'><o:p>&nbsp;</o:p></span></p>

<p class=MsoNormal style='margin-bottom:0cm;margin-bottom:.0001pt;text-align:
justify;text-indent:35.4pt;line-height:normal'><span lang=EN-US
style='font-size:12.0pt;font-family:"Times New Roman","serif"'><o:p>&nbsp;</o:p></span></p>

<p class=MsoNormal style='margin-bottom:0cm;margin-bottom:.0001pt;text-align:
justify;text-indent:35.4pt;line-height:normal'><span lang=EN-US
style='font-size:12.0pt;font-family:"Times New Roman","serif"'><o:p>&nbsp;</o:p></span></p>

<p class=MsoNormal style='margin-bottom:0cm;margin-bottom:.0001pt;text-align:
justify;text-indent:35.4pt;line-height:normal'><span lang=EN-US
style='font-size:12.0pt;font-family:"Times New Roman","serif"'><o:p>&nbsp;</o:p></span></p>

<p class=MsoNormal style='margin-bottom:0cm;margin-bottom:.0001pt;text-align:
justify;text-indent:35.4pt;line-height:normal'><span lang=EN-US
style='font-size:12.0pt;font-family:"Times New Roman","serif"'><o:p>&nbsp;</o:p></span></p>

<p class=MsoNormal style='margin-bottom:0cm;margin-bottom:.0001pt;text-align:
justify;text-indent:35.4pt;line-height:normal'><b><span lang=EN-US
style='font-size:12.0pt;font-family:"Times New Roman","serif"'>Samir Z. Zard</span></b><span
lang=EN-US style='font-size:12.0pt;font-family:"Times New Roman","serif"'> was
born in 1955 in Ife, Nigeria. His training as a chemist started at the American
University of Beirut, then at Imperial College, London, and finally at the
Université Paris-Sud, France, where he received his doctorate under the
supervision of Professor Sir Derek Barton. His main research interests concern
the study and development of new reactions and processes, with a special
interest in radicals, organosulfur derivatives, alkynes, and nitro compounds.
In addition to a number of academic awards, he received in 2007 the Croix de
Chevalier de la Légion d&#8217;Honneur.<o:p></o:p></span></p>

<p class=MsoNormal><span lang=EN-US><o:p>&nbsp;</o:p></span></p>

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