Synthesis and Characterization of Cyclic Alkyl Tetraynes
收藏NIAID Data Ecosystem2026-03-06 收录
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Cyclic (4a−e) and linear (10) tetraynes have been studied. Macrocycles 4a−e are unstable to isolation as neat compounds, but 4b−e have been characterized in solution. 13C NMR spectroscopy shows a consistent downfield shift of the acetylenic resonances of 4c−e as ring strain increases. UV−vis spectroscopy demonstrates that ring strain has little effect on the HOMO−LUMO gap. X-ray crystallography of tetrabromoolefin 6b confirms the monomeric constitution of the precursors.
创建时间：
2016-06-03
