Unsaturated macrocyclic compounds. LVIII. Reaction of trans-1,4-dibromo-2-butene and trans-1,4-dichloro-2-butene with ethynylmagnesium bromide. Synthesis of precursors of fully conjugated 14-, 16-, 20-, and 26-membered ring cyclic compounds
Unsaturated macrocyclic compounds. LVIII. Reaction of trans-1,4-dibromo-2-butene and trans-1,4-dichloro-2-butene with ethynylmagnesium bromide. Synthesis of precursors of fully conjugated 14-, 16-, 20-, and 26-membered ring cyclic compounds
Unsaturated eight-membered ring compounds. X. 1,2,3,4,7-cyclooctapentaene, a possible intermediate in the conversion of cis,cis-3,5-octadiene-1,7-diyne to benzocyclobutadiene dimer
作者:G. H. Mitchell、Franz Sondheimer
DOI:10.1021/ja01054a055
日期:1969.12
Synthesis of 2,8,10,16-tetradehydro[17]annulenone. Demonstration of a paramagnetic ring current in a [4n+1]annulenone derivative