Photochemistry of dispiro-1,3-cyclobutanediones in methylene chloride and methanol solutions
作者:A. Paul Krapcho、Berhanu Abegaz
DOI:10.1021/jo00929a026
日期:1974.7
Study of I-Strain Relief in the Intermediate When Forming Spiro Ketones from Unsymmetrical Cycloalkylidenecycloalkanes, Their Dibromides, and Their Pinacols
作者:Richard D. Sands
DOI:10.1021/jo00081a030
日期:1994.1
Three unsymmetrical intercyclic olefins, their dibromides, and their pinacols were prepared, each so the two carbons involved at the functional group were part of a different sized ring. The pinacols were reacted with 25% sulfuric acid and with boron trifluoride etherate, the dibromides with silver nitrate,and the olefins with mercuric acetate and with trifluoroperacetic acid. The predominant spiro ketone found in each product mixture was used to determine which carbon, and hence which size ring, could better undergo the sp(3) to sp(2) or the sp(2) to sp(3) transition. The findings were consistent with Brown's observations on ring strain.
Godchot; Cauquil, Comptes Rendus Hebdomadaires des Seances de l'Academie des Sciences, 1928, vol. 186, p. 768
作者:Godchot、Cauquil
DOI:——
日期:——
Ionic reactions in the spiran series. III. Solvolysis of medium-sized-ring spiro compounds