Abstract
AbstractIrradiation of cyclohexyl phenyl ketone (1) results in either intra‐ or intermolecular hydrogen abstraction to afford compounds 1‐phenylhept‐6‐en‐1‐one (2) and α‐cyclohexyl benzyl alcohol (3) as photoproducts, in which 3 has a pair of enantiomers. Herein, two types of chiral hexagonal liquid crystals were prepared to direct the enantioselective photochemical reaction of 1. One of the hexagonal liquid crystals is composed of 1‐tetradecyl‐3‐methylimidazolium bromide/p‐xylene/H2O with the modification by a chiral inductor. The other one is formed by chiral (S)‐3‐hexadecyl‐1‐(1‐hydroxy‐propan‐2‐yl)‐imidazolium bromide/p‐xylene/H2O. The product analysis shows that the latter one can be used as a microreactor to achieve stereoselective photochemical reaction, while the former one produced compound 3 with no enantioselectivity at all.
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