The photodissociation of oxalyl chloride and 2,3 butanedione at 193nm and 248nm have been studied by Time resolved FTIR emission spectroscopy. The IR fluorescence emission was observed and the rotational and vibration...The photodissociation of oxalyl chloride and 2,3 butanedione at 193nm and 248nm have been studied by Time resolved FTIR emission spectroscopy. The IR fluorescence emission was observed and the rotational and vibrational populations of the CO product were obtained. It is suggested that the photolysis mechanism is two RCO radicals formed via a fission of C-C bond, followed by a decomposition of the RCO intermediate to vibrationally excited CO( v ) and R radical.展开更多
以烯丙醇和草酰氯为原料,合成医药法罗培南的重要中间体烯丙氧基单草酰氯,用正交实验研究了反应物料摩尔配比、反应温度、反应时间对产品收率的影响。结果表明,合成烯丙氧基单草酰氯的最佳工艺条件为:烯丙醇与草酰氯的摩尔比为1∶1.05,...以烯丙醇和草酰氯为原料,合成医药法罗培南的重要中间体烯丙氧基单草酰氯,用正交实验研究了反应物料摩尔配比、反应温度、反应时间对产品收率的影响。结果表明,合成烯丙氧基单草酰氯的最佳工艺条件为:烯丙醇与草酰氯的摩尔比为1∶1.05,反应温度40℃,反应时间60 m in。在上述条件下,反应收率达到84.0%,产品含量99.6%。展开更多
文摘The photodissociation of oxalyl chloride and 2,3 butanedione at 193nm and 248nm have been studied by Time resolved FTIR emission spectroscopy. The IR fluorescence emission was observed and the rotational and vibrational populations of the CO product were obtained. It is suggested that the photolysis mechanism is two RCO radicals formed via a fission of C-C bond, followed by a decomposition of the RCO intermediate to vibrationally excited CO( v ) and R radical.
文摘以烯丙醇和草酰氯为原料,合成医药法罗培南的重要中间体烯丙氧基单草酰氯,用正交实验研究了反应物料摩尔配比、反应温度、反应时间对产品收率的影响。结果表明,合成烯丙氧基单草酰氯的最佳工艺条件为:烯丙醇与草酰氯的摩尔比为1∶1.05,反应温度40℃,反应时间60 m in。在上述条件下,反应收率达到84.0%,产品含量99.6%。