Tetrahedron: Asymmetry

Stereoselective transformation of amines via chiral 2, 4, 6-triphenylpyridinium intermediates

SA Said, A Fiksdahl

文献索引：Said, Sadri A.; Fiksdahl, Anne Tetrahedron Asymmetry, 2001 , vol. 12, # 13 p. 1947 - 1951

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被引用次数: 4

摘要

We herein report the preparation and the nucleophilic substitution of the chiral 2, 4, 6- triphenylpyridinium tetrafluoroborates 2a and 2b. The triphenylpyridinium intermediates were generated from homochiral amines (1a, 1b) and 2, 4, 6-triphenylpyrylium tetrafluoroborate and used as substrates for stereoselective nucleophilic substitution. The degree of inversion in the substitution reactions has been studied. The alcohol (3a, 3b) ...