Tetrahedron letters

Regio-and selective synthesis of 4, 6-disubstituted-2-pyridones

K Cherry, M Abarbri, JL Parrain, A Duchêne

文献索引：Cherry, Khalil; Abarbri, Mohamed; Parrain, Jean-Luc; Duchene, Alain Tetrahedron Letters, 2003 , vol. 44, # 31 p. 5791 - 5794

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被引用次数: 22

摘要

We have previously described the synthesis of dienes or enynes bearing a carboxylic function from β-iodovinylic acids and vinyltin or alkynylzinc reagents. 12., , and We have also reported the stereoselective one-pot synthesis of α-pyrones under palladium complex catalysis by coupling tributylstannylallenes with (Z)-iodovinylic acids. 13 Our aim here was to prepare allenylsubstituted alkenoic amides which we believed would exclusively undergo 6-endo mode cyclisation ...