Conclusions
13C-13C SSCC values across the triple bond in activated acetylenes are determined primarily by the σ-electronic properties of substituents. The enhanced sensitivity of1Jcc in acetylene derivatives to substituent effects also asserts their possible utility in estimating the electronegative properties of substituents.
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Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 6, pp. 1287–1292, June, 1988.
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Krivdin, L.B., Shcherbakov, V.V., Gritsa, A.I. et al. Direct13C-13C spin-spin coupling constants for the triple bond in activated acetylenes. Russ Chem Bull 37, 1132–1136 (1988). https://doi.org/10.1007/BF00961916
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DOI: https://doi.org/10.1007/BF00961916