2a
(E)-3-Thioxospiro[chroman-2,1ʹ-cyclohexane]-4-one S-(1-adamantylimide) (1) reacted with numerous nitrilimines (generated in situ via triethylamine dehydrohalogenation of the corresponding hydrazonoyl chlorides - i) in refluxing dry toluene to afford 3ʺ,5ʺ-disubstituted-300H,4ʹHdispiro[ cyclohexane-1,2ʹ-chromene-3ʹ,2ʺ-[1,3,4]thiadiazole]-4ʹ-ones 3a - i. Similarly, reaction of 2,2-dimethyl-3-thioxochroman-4-one S-(1-adamantylimide) (4) with nitrilimines in refluxing dry toluene afforded the corresponding 3ʹ,5ʹ-disubstituted-3,3-dimethyl-3ʹH,4H-spiro[chromene-3,2ʹ- [1,3,4]thiadiazole]-ones 5a - i.
2a
(E)-3-硫氧螺[色满-2,1ʹ-环己烷]-4-酮 S-(1-金刚烷酰亚胺)(1)在回流干燥甲苯中与大量的硝基亚胺(通过三乙胺脱氢卤化相应的肼酰氯-i原位生成)反应,得到 3ʺ、5ʺ-二取代-300H,4ʹH-二螺[环己烷-1,2ʹ-铬-3ʹ,2ʺ-[1,3,4]噻二唑]-4ʹ-酮 3a -i。同样,2,2-二甲基-3-硫酮-4-苯并二氢吡喃酮 S-(1-金刚烷酰亚胺)(4)在回流干燥甲苯中与二rilimines 反应,得到相应的 3ʹ,5ʹ-二取代-3,3-二甲基-3ʹH,4H-螺[色烯-3,2ʹ-[1,3,4]噻二唑]-酮 5a - i。