“…All other reagents, unless otherwise noted, were obtained from Aldrich Chemical Co., Fisher Scientific, Acros Organics, Lancaster, or Janssen Chemica and were used without further purification unless otherwise indicated. acrylate, prepared by the method of Cassady et al, 44 were converted to a black solid that was sublimed at 85e95 C (0.1 mm Hg) to yield 33% of colorless 14, which was recrystallized from 1:1 hexanes/ether: mp 112e113 C (lit. 9 -Tetrahydro-5H-5,9-methano-benzocycloheptene-7-endo-carboxylic acid methyl ester (15).…”