METHOD FOR SYNTHESIZING 9,10-DIHYDRO-9-OXA-10-PHOSPHAPHENANTHRENE-10-OXIDE AND DERIVATIVES THEREOF
申请人:Lu Ling
公开号:US20110034717A1
公开(公告)日:2011-02-10
A method for synthesizing 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide or its derivatives has a step of introducing 6-chloro-6H-dibenz[c,e][1,2]oxaphosphorin or its derivative, an acid compound and water into a reacting chamber to form an organic layer having 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide or its derivative and an aqueous layer. Because the acid compound is from an external source and has a catalyzing effect, employing the method can prevent side reaction from occurring and increase yield of 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide or its derivative. Furthermore, the method is a one-pot operation of hydrolysis, dehydration and cyclization, so the method does not require purification of intermediates. Therefore, the method is time-and cost-saving and requires less organic solvent, resulting in less pollution to the environment.
一种合成9,10-二氢-9-氧-10-磷酚菲-10-氧化物或其衍生物的方法包括将6-氯-6H-二苯[c,e][1,2]氧磷酸酯或其衍生物、酸性化合物和水引入反应室中,形成具有9,10-二氢-9-氧-10-磷酚菲-10-氧化物或其衍生物和水相的有机层。由于酸性化合物来自外部源并具有催化作用,采用该方法可以防止副反应的发生,并提高9,10-二氢-9-氧-10-磷酚菲-10-氧化物或其衍生物的产率。此外,该方法是水解、脱水和环化的一锅操作,因此不需要纯化中间体。因此,该方法节省时间和成本,需要较少的有机溶剂,减少对环境的污染。