钯催化官能化芳基膦酸二乙酯的合成研究

来源 :精细化工中间体 | 被引量 : 0次 | 上传用户:tiantianle_a
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
通过对催化剂、配体、碱、溶剂的优化筛选,以官能化卤代芳烃与亚磷酸二乙酯为反应原料,以无水乙醇为溶剂,Pd(OAc)2为催化剂,PPh3为配体,Et3N为碱,在80℃下反应24 h,以60%左右的收率合成得到了系列芳基膦酸二烷基酯衍生物,其结构经FT-IR,1H NMR和13C NMR表征。 Through the optimization of catalysts, ligands, bases and solvents, using functionalized halogenated aromatic hydrocarbon and diethyl phosphite as raw materials, anhydrous ethanol as solvent, Pd (OAc) 2 as catalyst, PPh3 as ligand, Et3N was used as a base and reacted at 80 ℃ for 24 h. A series of dialkyl aryl arylphosphonates were synthesized in a yield of about 60%. The structures were characterized by FT-IR, 1H NMR and 13C NMR.
其他文献
江汉石油管理局第四机械厂是中国最大的压裂设备研发制造基地,先后成功研制了中国第一台70MPa酸化压裂车、第一台105MPa压裂车、第一套2000型压裂机组,改变了中国高端压裂设
The molecular geometry,electronic structure,thermochemistry and infrared spectra of [Mg(CHZ)3](ClO4)2 and [Mg(CHZ)3](NO3)2 were comparatively studied using the
Poly(4-vinylpyridinium tribromide) is an efficient catalyst for the conversion of various alcohols to their corresponding acetate derivatives with acetic anhydr
患者38岁,发现下腹部包块1年,不规则腹疼2个月,无诱因突发性持续性腹疼1d,无发热、恶心、呕吐及腹泻,以卵巢肿瘤蒂扭转于1998年1月15日急症入院。追问病史,2年前曾停经2个月,下腹疼3
We systematically studied the thermoelectric properties of MoS2 with doping based on the Boltzmann transport theory and first-principles calculations. We obtain
结统组织疾病合并恶性肿池文以报道较多,其中系统性红斑狼疮(SLE)合并恶性肿门甚少.我科收治且例SLE合并肺癌,报告如下:患者,女,25岁,未婚.因面部已形红斑、关节疼痛及下肢水肿于1991年
我祖父陈德霖先生(1861~1930年)为清末民初享有盛誉的老一辈京剧表演艺术家。从王瑶卿到“四大名旦”(梅兰芳、程砚秋、荀慧生、尚小云),都受过德霖先生的指授。近两年来,我
Titanium-doped ordered mesoporous alumina with specific structural properties has been prepared by the evaporation induced self-assembly sol-gel method. The res
对64例糖尿病并脑梗塞患者血糖与脑梗塞病情轻、中、重型及预后进行分析,发现糖尿病并重型脑梗塞的血糖明显高于轻、中型(P
李某,男,55岁,确诊为右肝巨块型肝癌。因有皮下瘀斑,牙龈出血等,给予维生素K_1 20mg加入液体中静滴8天,后改为肌注10mg,每日二次,共8天,总量为320mg。用药过程中无任何药物反