Studies on the Derivatives of Biphenylene Oxide. VII. The Influence of Substitution on the Opening and Closing of the Furan-ring of Biphenylene Oxide
作者:Seishi Yamashiro
DOI:10.1246/bcsj.17.10
日期:1942.1
removal of acetyl groups of those compounds and also the formation of the furan-ring. This facilitating effect varies with the relative position of the nitrogroup and the acetoxyl group, the order of the effect being ortho>para>meta; but the m-nitrosubstitution induces no ring-formation, giving exclusively nitrobiphenols. (ii) The introduction of bromine into the diacetoxydiphenyls hinders the removal