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2005
Indole derivatives
R 0140
One-Pot Homolytic Aromatic Substitutions/HWE Olefinations under Microwave
for the Formation of a Small Oxindole Library. — The PRE ("persis04- 120 Conditions
tant radical effect")-mediated homolytic aromatic substitutions and Horner-type olefinations are carried out in a one-pot manner under microwave conditions. The aldehydes
are used in excess amounts (10—20 equiv.). A small library of α,β-unsaturated oxindoles is presented: most of them are obtained as a mixture of cis and trans isomers
which can be easily separated. — (TEICHERT, A.; JANTOS, K.; HARMS, K.;
STUDER*, A.; Org. Lett. 6 (2004) 20, 3477-3480; Fachbereich Chem.,
Philipps-Univ., D-35043 Marburg, Germany; Eng.) — Steudel
2005
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