... David N. Harpp,* L. Q. Bao, Catherine J. Black, John G. Gleason, and Roger A. Smith Department of Chemistry, McGill University, Montreal, Quebec, Canada Received April 15, 1975 ... J. Org. Chem., Vol. 40, No. 23, 1975 3421 ... Free acid, mp 74.5-75". J Lit.I8 117" (20 mm). ...