The ethyne-ethylidene rearrangement: Formation of 3-ethynyl-and 1-ethynylacenaphthylene on flash vacuum pyrolysis of 1,7-diethynylnaphthalene
作者:Roger F.C. Brown、Frank W. Eastwood、Neil R. Wong
DOI:10.1016/s0040-4039(00)77534-4
日期:1993.2
1,7-Diethynylnaphthalene on flash vacuum pyrolysis at 1100°C/0.05 mm gave 3-ethynylacenaphthylene and 1-ethynylacenaphthylene (80:20). This finding is interpreted in terms of initial formation of 3-ethynylacepnaphthylene, ring closure of some of this compound to the hypothetical cyclopent[bc]acenaphthylene and cleavage to give 1-ethynyl- and 3-ethynylacenaphthylene.
在1100℃/ 0.05mm下的快速真空热解中的1,7-二乙炔基萘得到3-乙炔基间萘和1-乙炔基间萘(80∶20)。这一发现是根据3-乙炔基乙炔的初始形成,该化合物中某些化合物与假定的环戊[ bc ] ena烯的开环闭合和裂解得到1-乙炔基-和3-乙炔基ena烯而解释的。