Reaction of Amidine Phenylogous with<i>p</i>-Benzoquinones
作者:Ahmed M. Nour El-Din、Aboul-Fetouh E. Mourad、Alaa A. Hassan、Mohsen A. Gomaa
DOI:10.1246/bcsj.64.1966
日期:1991.6
N-(4-Dimethylaminobenzylidene)anilines and N1-(4-dimethylaminophenyl)-N1,N2-diphenylformamidine reacted with tetrachloro-, tetrabromo,- and tetrafluoro-p-benzoquinones via charge-transfer complexes formation giving 2-monoarylamino-3,5,6-trihalo-p-benzoquinones and 2,5-bis(arylamino)-3,6-dihalo-p-benzoquinones. The course of the reaction leading to the formation of the products has been interpreted.
Improved Preparation of 6,13-Dichlorotriaryldioxazines using (Diacetoxyiodo)benzene
作者:Min Xia、Chunfang Ye
DOI:10.1039/a903221e
日期:——
6,13-Dichlorotriaryldioxazines (DClTADO) 1 have been synthesized from 2,5-bis(arylamino)-3,6-dichloro-1,4-benzoquinones (BADClBQ) 2 by oxidation with (diacetoxyiodo)benzene (DIB) under mild conditions in good yields.