Dehydroaunulenes. VI. Synthesis and properties of 1, 6, 12, 17-tetraphenyl-2, 4, 13, 15-tetrakisdehydro [22] annulene.

S Akiyama, T Nomoto, M Iyoda…

文献索引：Akiyama,S. et al. Bulletin of the Chemical Society of Japan, 1976 , vol. 49, p. 2579 - 2581

被引用次数: 4

摘要

2580 TABLE 1. 100 MHz H1 FT-NMR PARAMETERS or VI (in THF-ds) AND VIII (in 013013) r-Values, j in Hz. VI VIII -40 °C 0 °c ”40 °C Hb —O.79t —0.62t —0.43t J=14 J=14 J=13 Ha —0.72d —0.55d 0.09d J=14 J=14 J=13 o-HofPh 0.93d 1.04d J=8 J=3 m,p—H of Ph 2—2.5m 2—2.5m H° 12.80t 12.76t 13.7lt J=14 J=14 j=13 It was found that VI is less stable and less soluble than the tetra-t-butyl analogue (VIII). Remarkable bathochromic shift of electronic ...