节点文献
Synthesis of 2-Acyl-2H-1,2,3-diazaphospholes and Their Diels-Alder Reaction with Cyclopentadiene
【Abstract】 H-1,2,3-Diazaphospholes 3a3h were prepared from various ketone acylhydrazones and phosphorus trichlo-ride in the presence of triethylamine. Compounds 3 underwent feasible hetero-Diels-Alder reactions with cyclopen-tadiene to afford the respective anellated [1,2,3]diazaphospholes 4a4d as well as 4a’4d’ in moderate yields. The endo rule in the reaction was observed under kinetic control conditions.
【关键词】 2H-1；
2；
3-diazaphosphole；
cyclopentadiene；
Diels-Alder reaction；
【Key words】 2H-1； 2； 3-diazaphosphole； cyclopentadiene； Diels-Alder reaction；
【Key words】 2H-1； 2； 3-diazaphosphole； cyclopentadiene； Diels-Alder reaction；
【基金】 the National Natural Science Foundation of China (No. 20372015).
- 【文献出处】 Chinese Journal of Chemistry ,中国化学(英文版) , 编辑部邮箱 ,2004年09期
- 【分类号】O621
- 【下载频次】9