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Novel synthesis of oxa[9]helicenes by Lawesson’s reagent-mediated cyclization of helical quinone derivatives |
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| Authors: | Mohammad Salim Akira AkutsuTakao Kimura Masahiro MinabeMichinori Karikomi |
| Institution: | a Department of Material and Environmental Chemistry, Graduate School of Engineering, Utsunomiya University, Utsunomiya, Tochigi 321-8585, Japan b Department of Chemistry, School of Physical Sciences, Shahjalal University of Science and Technology, Sylhet 3114, Bangladesh |
| Abstract: | New oxa9]helicenes which possess one furan ring have been readily prepared by reactive helical quinone with Lawesson’s reagent or phosphorus pentasulfide in good yields. The versatility of this protocol has been demonstrated with various substituted helical quinones. |
| Keywords: | Helicene Quinone Lawesson&rsquo s reagent Oxahelicene |
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