在-78或-20°C下用二甲基二环氧乙烷(DMD)氧化5-(1-金刚烷基)-5-叔丁基四硫杂环戊酸酯(3a)得到(1 R *,3 S *)-和(1 R *,3 R *) - 3-(1-金刚烷基)-3-叔-butyldithiirane 1-氧化物(顺式-图4a和反式- 4a中,分别地)作为最终产品。显示该反应通过逐步氧化为相应的2-氧化物,然后为2,3-二氧化物5(vic)进行。-二亚砜;后者通过低温重结晶以纯净形式分离,并且在室温下处于结晶态时相当稳定。5的结构通过X射线晶体学确定。2,3-氧化物5个物分解在溶液上方-10℃至顺式-图4a,反式-图4a,和“S 2 O”为主要产品。反应性硫物质S 2 O被2,3-二甲基-1,3-丁二烯捕获,得到4,5-二甲基-3 H,6 H -1,2-二硫辛1-氧化物。在没有二烯的情况下,S 2 O歧化为SO 2和'S 3’,其被降冰片烯捕获,得到外-降冰片烷三硫杂环戊烷(外--3
reported. The reaction of dimagnesium salts of ketone hydrazones with diselenium dichloride affords an intermediate tentatively assigned as tetraselenides, which are converted into selenoketones by heating in the presence of tributylamine. A comparative study on the reactions of 1,1,3,3-tetramethyl-2-indanselone and the corresponding thioketone with Grignard and organolithium reagents have been carried