THERMAL REACTION OF 2,3-DIAZATETRACYCLO[5.3.1.0<sup>4,11</sup>.0<sup>6,8</sup>]UNDECA-2,9-DIENES: THE NITROGEN EXTRUSION AND THE MASKED HOMODIENYL-1,5-HYDROGEN SHIFT
作者:Yoshihiro Ohba、Tsutomu Kumagai、Toshio Mukai
DOI:10.1246/cl.1983.1361
日期:1983.9.5
Thermolyses of the title compounds produce three kinds of products which are derived from nitrogen extrusion and 1,5-hydrogen shifts. The reaction mechanism is discussed in connection with the thermal behavior of bicyclo[4.2.1]nonatriene.
Evidence for thermal 3,5-sigmatropy of 7-vinylnorcaradienes
作者:Peter J. Battye、David W. Jones
DOI:10.1039/c39860001807
日期:——
(1; a–d) to give the dihydroindenes (2; a–d) and the Cope products (3; a–c); dihydroindene formation is stereospecific, and strongly inhibited in the benzonorcaradienes (7; b–d) in agreement with 3,5-sigmatropy rather than vinylcyclopropane–cyclopentene rearrangement.