Further studies on the cyclisation of 3-hydroxy-2'-nitrodiphenyl ethers and related compounds
作者:C.W. Bird、M. Latif
DOI:10.1016/0040-4020(80)80079-2
日期:1980.1
been examined as a potential route to 1H-phenoxazinones. Unexpectedly, cyclisation of the dichloro compound proceeded with loss of a Cl and yielded 2-chloro-3H-phenoxazin-3-one. The cyclisation of a range of analogous substrates has been investigated and shown to provide novel and convenient syntheses of 3-amino-phenoxazine, 3H-phenothiazin-3-one and 8-hydroxy-5,10-dihydro-11H-dibenzo[b,e][1,4]diazepin-11-one
已经研究了3-羟基-2′-硝基二苯基醚的4,6-二甲基和4,6-二氯衍生物的还原环化作为制备1H-苯恶嗪酮的潜在途径。出乎意料的是,二氯化合物的环化在失去Cl的情况下进行并产生了2-氯-3H-苯恶嗪-3-酮。已研究了一系列类似底物的环化作用,并证明它们可提供新颖,方便的合成方法,包括3-氨基-吩恶嗪,3H-吩噻嗪-3-酮和8-羟基-5,10-二氢-11H-二苯并[b, e] [1,4] diazepin-11-one。