Methods for forming 1,3,5,7-tetraalkyl-6-(2,4-dimethoxyphenyl)-2,4,8-trioxa-6-phosphaadamantane
申请人:Dow Global Technologies LLC
公开号:US11111260B2
公开(公告)日:2021-09-07
A method for forming 1,3,5,7-tetraalkyl-6-(2,4-dimethoxyphenyl)-2,4,8-trioxa-6-phosphaadamantane includes obtaining a solution comprising an ethereal solvent and an aluminum hydride, adding dichloro(2,4-dimethoxyphenyl)phosphine to the solution to produce 2,4-dimethoxyphenylphosphine, and reacting the 2,4-dimethoxyphenylphosphine with an acidic mixture comprising diones to produce 1,3,5,7-tetraalkyl-6-(2,4-dimethoxyphenyl)-2,4,8-trioxa-6-phosphaadamantane. The solution has a temperature from IN greater than −20 C. to 50 C. throughout the method. Another method for forming 1,3,5,7-tetraalkyl-6-(2,4-dimethoxyphenyl)-2,4,8-tri-oxa-6-phosphaadamantane includes obtaining dichloro(2,4-dimethoxyphenyl)phosphine, forming 2,4-dimethoxyphenylphosphine by adding the dichloro(2,4-dimethoxyphenyl)phosphine to a solution comprising at least one solvent and an aluminum hydride, reacting the 2,4-dimethoxyphenylphosphine with a mixture to produce 1,3,5,7-tetraalkyl-6-(2,4-dimethoxyphenyl)-2,4,8-trioxa-6-phosphaadamantane. The mixture includes an acid selected from the group consisting of Lewis acids, sulfonic Bronsted acids, and mixtures thereof, an aromatic or non-aromatic hydrocarbons; and acetylacetone.
一种形成 1,3,5,7-四烷基-6-(2,4-二甲氧基苯基)-2,4,8-三氧杂-6-磷杂金刚烷的方法包括获得一种由乙醚溶剂和氢化铝组成的溶液,向该溶液中加入二氯(2,4-二甲氧基苯基)膦以生成 2、2,4-二甲氧基苯基膦,并使 2,4-二甲氧基苯基膦与由二元酸组成的酸性混合物反应,生成 1,3,5,7-四烷基-6-(2,4-二甲氧基苯基)-2,4,8-三氧杂-6-磷杂金刚烷。在整个方法过程中,溶液的温度从 IN 大于-20 摄氏度到 50 摄氏度不等。另一种形成 1,3,5,7-四烷基-6-(2,4-二甲氧基苯基)-2,4,8-三氧杂-6-磷杂金刚烷的方法包括获得二氯(2,4-二甲氧基苯基)膦,通过加入二氯(2,4-二甲氧基苯基)膦形成 2,4-二甲氧基苯基膦、将二氯(2,4-二甲氧基苯基)膦加入由至少一种溶剂和氢化铝组成的溶液中,使 2,4-二甲氧基苯基膦与一种混合物反应,生成 1,3,5,7-四烷基-6-(2,4-二甲氧基苯基)-2,4,8-三氧杂-6-磷杂金刚烷。混合物包括选自路易斯酸、磺化勃朗斯特德酸及其混合物、芳香族或非芳香族碳氢化合物和乙酰丙酮组成的组中的一种酸。