Synthesis of Tetra-and Penta-Substituted Pyrrole Derivatives from Azazirconacyclopentene and Acyl Halide in the Presence of CuCl
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Tetra- and penta-substituted pyrrole derivatives <B>5</B> and <B>6</B> were synthesized from acyl halide and azazirconacyclopentene <B>1</B>, prepared from iminosilaacyl complex <B>2</B> and alkyne <B>4</B> in the presence of LiEt<SUB>3</SUB>BH, by transmetalation of zirconium to copper by a one-pot reaction.
- Chemistry Letters
Chemistry Letters 1997(8), 825-826, 1997-08
The Chemical Society of Japan