抄録
Protonated 4-isopropyltropolone (H2L+) was produced by the addition of methanesulfonic or trifluoromethanesulfonic acid to 4-isopropyltropolone (hinokitiol: HL) dissolved in a protophobic aprotic solvent, acetonitrile, with poor solvation of anions and cations. The formation was confirmed by UV-visible and 13C NMR spectroscopy as well as theoretical calculations using the Gaussian03 quantum chemistry package. The 13C chemical shifts of all C-atoms in the seven-membered ring were properly assigned for H2L+ and HL as well as for the deprotonated species, L-. The influence of residual water in the organic solvent was regarded as negligible because such a water is in the "dihydrogen ether" condition.
本文言語 | English |
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ページ(範囲) | 1986-1989 |
ページ数 | 4 |
ジャーナル | Journal of Chemical and Engineering Data |
巻 | 55 |
号 | 5 |
DOI | |
出版ステータス | Published - 2010 5月 13 |
ASJC Scopus subject areas
- 化学 (全般)
- 化学工学(全般)