Hou Zi
2000
Citations
0
Influential Citations
0
Citations
Journal
Acta Chimica Sinica
Abstract
In presence of an amine, the reaction of 3,7 - dinitrodibenzobromolium bisulfate with dimethyl sulfoxide gives 2 - bromo - 4,4' - dinitro - 3' - dimethylsulfinio - 2' - biphenolate (3) . Crystal structure of 3a obtained by crystallization of 3 in benzene showes that 3 is a inner salt. The dihedral angle between two phenyl rings is 117.3°. The C(3)-O(3) bond distance(0.1254 nm) falls in the range from 0.119 ~ 0.121 run (C=0 double bond distance) to 0.133 ~ 0.136 run (C-O single bond distance), which showes that there is a conjugation between O(3) and the phenyl ring. Thermal decomposition of 3 gives both 2 - bromo -2'- methoxy - 3' - methylthio - 4, 4' - dinitro - biphenyl (6) and 3,7- dinitro - 4 - methylthio -dibenzofurane (7) . The reaction of 3 with hydrochloric acid gives corresponding sulfonium salt (8).