Journal
JOURNAL OF ORGANIC CHEMISTRY
Volume 78, Issue 12, Pages 6316-6321Publisher
AMER CHEMICAL SOC
DOI: 10.1021/jo400691s
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Funding
- NSFC [21270255, 51273055, 20972041]
- Program for SRFDP [20124103110004]
- Program for CPSF [2011M500787]
- Program for PCS [IRT1126]
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In this work, the racernate and mesorner of the thiophene-based naphthalene-cored double helicenes (1) were obtained efficiently by one-pot photocyclization of 1,1,2,2-tetralcis(dithieno[2,3-b:3',2'-d]thiophen-2-yOethene in the presence of iodine in dry benzene. The structure of meso-la was confirmed by single crystal X-ray analysis. The chiral resolution of the racemate was carried out by chiral HPLC, and the chiral properties, such as CD spectra, optical rotations, and half-life of enantiorners were characterized.
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