利用Ando催化剂合成了2-硝基噻吩乙烯。其优化条件是:催化剂的负载量为每30 g Al2O3负载15 g KF,催化剂与2-噻吩甲醛的质量比为4.80∶1,硝基甲烷与2-噻吩甲醛质量比为1.09∶1,采用甲醇作催化剂的溶剂,反应温度控制在0-5℃之间。反应时间...利用Ando催化剂合成了2-硝基噻吩乙烯。其优化条件是:催化剂的负载量为每30 g Al2O3负载15 g KF,催化剂与2-噻吩甲醛的质量比为4.80∶1,硝基甲烷与2-噻吩甲醛质量比为1.09∶1,采用甲醇作催化剂的溶剂,反应温度控制在0-5℃之间。反应时间1.4 h,产率可达95.91%。展开更多
With the development of the society,the function of the building also becomes rich from single refuge,and modern architects can’t satisfy the pursuit of traditional architectural form,and design goal is transformed i...With the development of the society,the function of the building also becomes rich from single refuge,and modern architects can’t satisfy the pursuit of traditional architectural form,and design goal is transformed into emphasizing the dialogue between architecture and people,architecture and emotions,and architecture and environment.As a kind of new building materials,fair-faced concrete expresses almost any emotion and meets people’s emotional needs with its excellent structural performance and good plasticity.In this paper,the characteristics,expressive force and application of fair-faced concrete are studied and analyzed,and the application and development prospect of fair-faced concrete in architectural design are summarized.展开更多
文摘With the development of the society,the function of the building also becomes rich from single refuge,and modern architects can’t satisfy the pursuit of traditional architectural form,and design goal is transformed into emphasizing the dialogue between architecture and people,architecture and emotions,and architecture and environment.As a kind of new building materials,fair-faced concrete expresses almost any emotion and meets people’s emotional needs with its excellent structural performance and good plasticity.In this paper,the characteristics,expressive force and application of fair-faced concrete are studied and analyzed,and the application and development prospect of fair-faced concrete in architectural design are summarized.
