作者:G. Ariamala、K.K. Balasubramanian
DOI:10.1016/0040-4020(89)80058-4
日期:1989.1
A systematic study of the behaviour of aryl γ-halopropargyl ethers under thermal condition was undertaken. Aryl γ-bromopropargyl ethers underwent unique transformation in N,N-diethylanillne (215°C, 6 h) giving rise to a mixture of products ,and , whereas, under similar conditions aryl γ-chloropropargyl ethers ulbar|8, afforded 4-chlorochromenes, 9. A remarkable substituent and solvent effect has been
对芳基γ-卤代炔丙基醚在热条件下的行为进行了系统的研究。芳基γ-溴代炔丙基醚类的N,N-二diethylanillne(215℃,6小时)引起的产物的混合物进行独特变换,并且,反之,在类似条件下芳基γ-chloropropargyl醚ulbar | 8,得到4- chlorochromenes ,9。在这些芳基γ-溴和γ-氯炔丙基醚的热解中观察到了显着的取代基和溶剂作用,从而使这种转化成为合成许多取代的4-溴色烯,4-氯色烯和chroman-4-ones 。相反,芳基γ-碘炔丙基醚的溶液热解得到芳基炔丙基醚。 作为主要产品。