Re: ORGLIST: about peachmann reaction

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From: sdelgado-zoster$##$ferrergrupo.com
Date: Wed Mar 02 2005 - 10:14:56 EST


Hi Hasan,
if you are looking for Pechmann Condensation, it is about the synthesis of
coumarins by condensation of phenols with B-keto esters in the presence of
Lewis acid catalysts. You can find more information about the reaction in
the following reviews:
                                                                                          
 S. Sethna, Chem. Rev. 36, 10 (1945); S. Sethna, R. Phadke, Org. React. 7, 1 (1953). T.
 Kappe, E. Ziegler, Org. Prep. Proced. 1, 61 (1969); T. Kappe, C. Mayer, Synthesis 1981,
 524; A. G. Osborne, Tetrahedron 37, 2021 (1981); D. H. Hau et al., Synlett. 1990, 233;
 T-S. Li et al., J. Chem. Res. 1998, 39. Modified conditions: J. E. T. Corrie, J. Chem.
 Soc. Perkin Trans. I 1990, 2151; D. H. Hua et al., J. Org. Chem. 57, 399 (1992).
                                                                                          
 Good luck.
 Santi.
                                                                                          









                                                                                                             
                      hasannudin
                      hasannudin Para: everybody$##$orglist.net
                      <hasannudin_105$##$ya cc:
                      hoo.com> Asunto: ORGLIST: about peachmann reaction
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                      02/03/05 12:44
                                                                                                             
                                                                                                             



hi every body, i am student in bandung institute of tech.
now i have a task about sintesis some coumpound about peachmann reaction.
i cant find , how its mecanism,

could anyone help me, how can i learn about that reaction...

thank you to all..

hasan.


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