Chemical Communications

Designed molecular propellers based on tetraarylterephthalamide and their chiroptical properties induced by biased helicity through transmission of point chirality

R Katoono, H Kawai, K Fujiwara…

Index: Katoono, Ryo; Kawai, Hidetoshi; Fujiwara, Kenshu; Suzuki, Takanori Chemical Communications, 2008 , # 40 p. 4906 - 4908

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Abstract

The syn-atropisomers of the title bis (tertiary amide) s were designed as six-bladed molecular propellers based on the “directing effects” of amide dipoles; the helicity of the propeller is biased to prefer one handedness upon the attachment of point chirality to the amide nitrogens to attain stronger circular-dichroism activity than for the non-propeller- shaped anti-isomers.