【摘要】 本文报道了¹⁴C-溴仿的制备,并在相转移催化条件下由它合成了五个¹⁴C-标记偕二溴环丙烷衍生物2a～e。2a～e与非标记产物3a～e的纯度对照,表明均已达到化学纯。更多还原

【Abstract】 The title compounds（2 a～e）were prepared by using phase transfer catalysis method.a.R¹=p-CH₃C₆H₄,R²=R³=R⁴=H b.R¹=p-Cl-C₆H₄,R²=R³=R⁴=H c.R¹=C₆H₅,R²=R³=R⁴=H d.R¹=C₆H₅,R²=CH₃,R⁴=R³=H e.R¹=R³=H,R²=R⁴=-（CH₂）_4-The cycloaddition of¹⁴C labelled dibromocarbene with olefins were carried out in liq-liq.system(¹⁴CHBr₃-CH₂Cl₂/aq.NaOH)at 40℃ using N₂₆₃ as phase transfer catalyst.The products 2 a-e were identified and the results were compared with 3 a-e.The chemical structure and the purity of 3 a-e were assayed by elemental analysis,NMR,MS and thin layer chromatographic methods.更多还原