An efficient procedure for the resolution of α-cyano-α-fluoro-p-tolylacetic acid (CFTA) via the diastereomeric N-carbobenzyloxy-cis-1-amino-2-indanol esters

T Fujiwara, M Sasaki, K Omata, C Kabuto…

文献索引：Fujiwara, Tomoya; Sasaki, Masaki; Omata, Kenji; Kabuto, Chizuko; Kabuto, Kuninobu; Takeuchi, Yoshio Tetrahedron Asymmetry, 2004 , vol. 15, # 3 p. 555 - 563

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被引用次数: 23

摘要

Development of a new, efficient resolution method of α-cyano-α-fluoro-p-tolylacetic acid (CFTA) has been successfully achieved, which has been troublesome to obtain by conventional methods, in spite of its outstanding ability as an NMR chiral derivatizing agent. Fractional recrystallization of a mixture of the diastereomeric CFTA esters prepared from racemic CFTA chloride and (1R, 2S)-N-carbobenzyloxy-cis-1-amino-2-indanol afforded ...