作者:Gordon W. Kirby、James G. Sweeny
DOI:10.1039/p19810003250
日期:——
= Ac)followed by rapid capture of nitrosocarbonylmethane by thebaine. The related adduct (6; R = PhCO) behaved similarly. DMA adducts of the type (6) are valuable in studies on the reactions of nitrosocarbonyl compounds, especially with co-reactants sensitive to oxidation. Thus (6; R = Ac) and 1,3-diphenylisobenzofuran (7) reacted cleanly in benzene at 80°C to give the O-acetyloxime (10) of 1,2-dibenzoylbenzene
在共轭二烯蒂巴因(1)存在下,用高碘酸四乙铵氧化苯并异羟肟酸,可高收率得到环加合物6β,14β-(N-苯甲酰环氧亚氨基)-6,14-二氢蒂巴因(2; R = Ph)。类似地使用乙酰氧肟酸制备相应的N-乙酰基衍生物(2; R = Me)。同样地,从丁-1,3-二烯获得2-苯甲酰基-和2-乙酰基-3,6-二氢-2 H -1,2-恶嗪(5; R = Ph)和(5; R = Me) ,以及N-苯甲酰基和N来自9,10-二甲基蒽(DMA)的9,10-环氧亚氨基-9,10-二氢-9,10-二甲基蒽的-乙酰基衍生物(6; R = PhCO)和(6; R = Ac)。据信这些反应涉及亚硝基羰基苯或亚硝基羰基甲烷的形成,它们是一类新的瞬时反应性物质的代表。在蒂巴因(1)存在的情况下,在60°C下苯中的环加合物(6; R = Ac)分解,得到蒂巴因加合物(2; R = Me)和DMA。观察到DMA释放的一级动力学,这与加合物(6;