A series of 3-pyridinyl-6-aryl-l, 2, 4-triazolo[3, 4-b][1, 3, 4]thiadiazoles(PATT) were prepared, the structures were confirmed by IR and H NMR spectra. The results of cyclic 1 voltammetry measurements imply that all ...A series of 3-pyridinyl-6-aryl-l, 2, 4-triazolo[3, 4-b][1, 3, 4]thiadiazoles(PATT) were prepared, the structures were confirmed by IR and H NMR spectra. The results of cyclic 1 voltammetry measurements imply that all these compounds have a higher electron affinity (EA) than 2-(4-biphenyl)-5-(4-tert-butyl phenyl)-1, 3, 4-oxadiazole (PBD) which implies that PATT could be acting as better electron acceptors than widely used electron transporting material PBD.展开更多
本文报道1-(5-二茂铁基-1,3,4-噻二唑-2-基)哌啶-2-酮(1)的合成。首先,在乙酸催化下,二茂铁甲醛(2)和氨基硫脲(3)反应得到二茂铁亚胺基硫脲衍生物(4)。然后,在三氯化铁作用下,中间体4发生关环反应得到5-二茂铁基-1,3,4-噻二唑-2-胺(5)...本文报道1-(5-二茂铁基-1,3,4-噻二唑-2-基)哌啶-2-酮(1)的合成。首先,在乙酸催化下,二茂铁甲醛(2)和氨基硫脲(3)反应得到二茂铁亚胺基硫脲衍生物(4)。然后,在三氯化铁作用下,中间体4发生关环反应得到5-二茂铁基-1,3,4-噻二唑-2-胺(5)。中间体5再与5-溴戊酰氯(6)发生N-酰基化反应得到5-溴-N-(5-二茂铁基-1,3,4-噻二唑-2-基)戊酰胺(7)。最后,在碱性条件下,中间体7发生分子内关环反应得到目标化合物(1)。中间体及产物结构经1 H NMR、13 C NMR和ESI-MS表征,产物1结构进一步通过X-单晶衍射确证。然后分别考察了中间体5及产物1收率的主要影响因素,确定中间体5合成的适宜条件为:三氯化铁的用量为n(三氯化铁)∶n(中间体4)=4∶1,反应温度80℃,反应时间为15 h,在该条件下,中间体5的收率达到61.9%;确定产物1合成的适宜条件为:反应溶剂为二氧六环,物料比为n(DIEA)∶n(6)∶(5)=3.0∶1.2∶1.0、反应温度为80℃,反应时间为4 h,在该条件下,产物1收率达到68.4%。展开更多
文摘A series of 3-pyridinyl-6-aryl-l, 2, 4-triazolo[3, 4-b][1, 3, 4]thiadiazoles(PATT) were prepared, the structures were confirmed by IR and H NMR spectra. The results of cyclic 1 voltammetry measurements imply that all these compounds have a higher electron affinity (EA) than 2-(4-biphenyl)-5-(4-tert-butyl phenyl)-1, 3, 4-oxadiazole (PBD) which implies that PATT could be acting as better electron acceptors than widely used electron transporting material PBD.
文摘本文报道1-(5-二茂铁基-1,3,4-噻二唑-2-基)哌啶-2-酮(1)的合成。首先,在乙酸催化下,二茂铁甲醛(2)和氨基硫脲(3)反应得到二茂铁亚胺基硫脲衍生物(4)。然后,在三氯化铁作用下,中间体4发生关环反应得到5-二茂铁基-1,3,4-噻二唑-2-胺(5)。中间体5再与5-溴戊酰氯(6)发生N-酰基化反应得到5-溴-N-(5-二茂铁基-1,3,4-噻二唑-2-基)戊酰胺(7)。最后,在碱性条件下,中间体7发生分子内关环反应得到目标化合物(1)。中间体及产物结构经1 H NMR、13 C NMR和ESI-MS表征,产物1结构进一步通过X-单晶衍射确证。然后分别考察了中间体5及产物1收率的主要影响因素,确定中间体5合成的适宜条件为:三氯化铁的用量为n(三氯化铁)∶n(中间体4)=4∶1,反应温度80℃,反应时间为15 h,在该条件下,中间体5的收率达到61.9%;确定产物1合成的适宜条件为:反应溶剂为二氧六环,物料比为n(DIEA)∶n(6)∶(5)=3.0∶1.2∶1.0、反应温度为80℃,反应时间为4 h,在该条件下,产物1收率达到68.4%。