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Synthesis of 2‑Phospha[7]helicene, a Helicene with a Terminal Phosphinine Ring
- 1.0558546 - ÚCHP 2024 RIV US eng J - Journal Article
Beránek, Tomáš - Jakubec, Martin - Sýkora, Jan - Císařová, I. - Žádný, Jaroslav - Storch, Jan
Synthesis of 2‑Phospha[7]helicene, a Helicene with a Terminal Phosphinine Ring.
Organic Letters. Roč. 24, č. 26 (2022), s. 4756-4761. ISSN 1523-7060. E-ISSN 1523-7052
R&D Projects: GA ČR(CZ) GA20-19353S
Institutional support: RVO:67985858
Keywords : circularly-polarized-light * photophysical properties * coordination chemistry * phospinines
OECD category: Organic chemistry
Impact factor: 5.2, year: 2022
Method of publishing: Limited access
A synthetic strategy toward phosphahelicenes containing a terminal phosphinine ring has been explored. The 4-phenyl-6-methyl-2-phospha[7]helicene was prepared from starting 2-bromobenzo[c]phenanthrene in 12% overall yield in 12 steps. The synthetic approach involves introduction of the phosphorus function prior to photocyclization forming the final
helicene skeleton, followed by the formation of a phosphorus hexacycle. The structure of the first phosphahelicene with a terminal phosphinine ring was confirmed by X-ray crystallography.
Permanent Link: http://hdl.handle.net/11104/0332184
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