中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | methyl 3-(9,10-dihydro-9,10-ethanoanthracen-11-ylidene)acrylate-1-13C | 253179-24-7 | C20H16O2 | 289.335 |
3-(9′,10′-Dihydro-9′,10′-ethanoanthracen-11′-ylidene)prop-2-enoyl chloride and its [12′,12′- 2 H2] and [1- 13 C] isotopomers have been prepared and pyrolysed. Argon matrix infrared spectroscopy showed ν2 bands at 2207 . 7, 2207 . 0, and 2168 . 5 cm−1 respectively for the three pentatetraenone isotopomers. The pyrolysate of the 12′-methyl substituted precursor showed a band at 2205 cm−1 which was tentatively assigned to methylpentatetraenone. The 12′-ethenyl substituted precursor gave a pyrolysate showing ketene bands but also yielded 9,10-dihydro-9,10[1′,2′]-benzenoanthracene.