Journal of Organic Chemistry p. 1985 - 1987 (1981)
Update date:2022-08-15
Topics:
Nakazaki, Masao
Yamamoto, Koji
Maeda, Miharu
Photocyclization of a cis-trans mixture of the 1,2-diarylethylene precursor 9 gives 1,4-dimethylhexahelicene (10).The levorotatory enantiomer of 10 with M helicity is converted to (-)-(M)-<2.2>paracyclophanohexahelicene (6), which confirms the R configura
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