3-(4-Methoxyphenoxy)-1,2-benzisothiazole 1,1-Dioxide: its Relation to Mechanistic Behaviour in Catalytic Transfer Hydrogenolysis
作者:A. F. Brigas、R. A. W. Johnstone
DOI:10.1107/s0108270195016507
日期:1996.5.15
Conjugation of oxygen with an aromatic ring, as an a phenol, gives a C-O bond length of about 1.35 Angstrom, whereas the C-O bond length in an aliphatic alcohol is about 1.45 Angstrom. A saccharyl ether derivative of a phenol changes the phenolic C-O bond length to 1.42 Angstrom and makes the bond chemically more susceptible to catalytic ipso replacement of the aromatic C-OH linkage by C-H. The present study of the title compound, C14H11NO4S, was carried out in order to examine specifically the effect of saccharyl ether formation on the C-O bond length of a phenol.