摘要:
The invention concerns a method for method for preparing 1,3,5-triaminobenzene, characterized in that it comprises a step which consists in amination of a compound of formula (I), wherein: A represents a halogen atom or a NH2 group; X1 and X2, identical or different, represent each a halogen atom, the amination step being carried out in the presence of ammonia and a catalyst selected from the group consisting of copper salts, cupric and cuprous oxides or mixtures thereof at a temperature ranging between 150° C. and 250° C. and at a pressure higher that 35 bars.
摘要翻译:本发明涉及一种制备1,3,5-三氨基苯的方法,其特征在于它包括一个步骤,该步骤由式(I)化合物胺化而成,其中:A代表卤原子或NH 2 SUB>组; X 1和X 2相同或不同,表示各自的卤素原子,胺化步骤在氨存在下进行,并且催化剂选自: 铜盐,铜和氧化亚铜或其混合物,温度范围为150℃至250℃,压力高于35巴。
摘要:
The invention concerns a method for method for preparing 1,3,5-triaminobenzene, characterized in that it comprises a step which consists in amination of a compound of formula (I), wherein: A represents a halogen atom or a NH2 group; X1 and X2, identical or different, represent each a halogen atom, the amination step being carried out in the presence of ammonia and a catalyst selected from the group consisting of copper salts, cupric and cuprous oxides or mixtures thereof at a temperature ranging between 150° C. and 250° C. and at a pressure higher that 35 bars
摘要翻译:本发明涉及一种制备1,3,5-三氨基苯的方法,其特征在于它包括一个步骤,该步骤由式(I)化合物胺化而成,其中:A代表卤原子或NH 2 SUB>组; X 1和X 2相同或不同,表示各自的卤素原子,胺化步骤在氨存在下进行,并且催化剂选自: 铜盐,铜和氧化亚铜或其混合物,温度范围为150℃至250℃,压力高于35巴
摘要:
Methods for the synthesis of psoralen derivatives are provided. In one embodiment, the method may include acetylating a compound of formula (II) to form a compound of formula (III), subjecting the compound of formula (III) to a Fries rearrangement to form a compound of formula (IV), and subjecting the compound of formula (IV) to cyclization, reduction and aromatization, to form a compound having the following formula (I):