Abstract
Higher homologues of dibenzo[c,e][1,2]dithiin were synthesized from oligophenyls bearing multiple methylthio groups. Single‐crystal X‐ray analyses revealed their nonplanar structures and helical enantiomers of higher meta‐congener 6. Such dibenzo[1,2]dithiin homologues are demonstrated to be applicable to lithium‐ion batteries as cathode, displaying a high capacity of 118 mAh g−1 at a current density of 50 mA g−1.
Highlights
Substituted and ortho-bridged biphenyls play an important role, for example, as models for stereochemical studies,[1] natural products[2] and chiral ligands of metal catalysts.[3]
Disulfide bridges are known to play an important role in controlling conformations, with the classical example coming from the peptide chemistry.[8]
In case of oligophenyl systems, we considered that electrontransfer-induced opening or closing of intramolecular SÀS bonds[9] could lead to conformation control
Summary
Substituted and ortho-bridged biphenyls play an important role, for example, as models for stereochemical studies,[1] natural products[2] and chiral ligands of metal catalysts.[3]. Oligophenyls with multiple fused [1,2]dithiin rings, namely higher homologues of dibenzo[c,e][1,2]dithiin (3), have not been reported.[5]
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