1,4-C,H Insertion of Vinyl Vinylidene to Intermediate Cyclobutadiene does not occur during Flash Vacuum Pyrolysis of 1-Buten-3-yne

Article abstract of DOI:10.1016/0040-4039(95)00629-Q

1-Buten-3-yne (1) and <4-D>1-buten-3-yne (1a) have been treated between 800 and 1000 deg C under flash vacuum pyrolysis as well as under gas phase pyrolysis in nitrogen and the effluents thoroughly analyzed by GC, GC/MS, GC/FTIR, 1H- and 2H-NMR spectrosco