Formation of biphenylene by elimination of C2 from 9,10-didehydrophenanthrene at 1100°C
作者:Roger F.C Brown、Karen J Coulston、Frank W Eastwood
DOI:10.1016/s0040-4039(96)01488-8
日期:1996.9
Flash vacuum pyrolysis of phenanthrene-9,10-dicarboxylic anhydride 5 and of 2,2-dimethyl-5-(9′-fluorenylidene)-1,3-dioxan-4,6-dione 8 at 1100°C/0.03–0.04 mm Hg gave pyrolysates which were analysed by 1H NMR spectroscopy and shown to contain phenanthrene 9 as a major constituent and biphenylene 2 as a minor one.
在1100°C / 0.03-0.04下快速真空热解菲-9,10-二羧酸酐5和2,2-二甲基-5-(9'-芴基)-1,3-二恶烷-4,6-二酮8毫米汞柱得到热解产物,其通过1 H NMR光谱分析,并显示包含菲9作为主要成分,联苯2作为次要成分。