a colorless flammable gas sometimes used as an inhalation anesthetic
例句与用法
1.
Treatment with butyllithium gave rise to cyclopropanes . 用丁基锂处理,即得到环丙烷。
2.
A variety of cyclopropanes are thus produced in good yield . 从而以高收率得到带各种环丙烷。
3.
Cyclopropane rings are included within larger systems, such as triterpenes . 三元环包含在较大的环系统中,像三萜类中。
4.
A new convenient synthesis of a series of polyfluoroalkyl substituted cyclopropane derivatives was achieved by the reaction of polyfluoroalkyl iodides with diethyl allylmalonate in the presence of sodium dithionite in 45 % ~ 55 % yields 摘要以连二亚硫酸钠为引发剂,烯丙基丙二酸二乙酯与多氟烷基碘代烷在温和条件下反应,方便地得到一系列多氟烷基取代的环丙烷衍生物,产率45 % ~ 55 % 。