On triazoles XLIII. Synthesis of 1,2,4-triazolyl isoquinolinium zwitter ions
作者:Ibolya Prauda、István Kövesdi、PÉTer Trinka、JÓZsef Reiter
DOI:10.1002/jhet.5570380215
日期:2001.3
Type 8 isoquinolinium zwitter ions were synthesised by the reaction of type 1 diketones or type 2 pyrylium salts with different 5-amino-3-Q-1H-1,2,4-triazoles. Spectroscopic and X-ray diffraction evidence was given for the zwitter ion structure of the products obtained. The position of the negative charge on the 1,2,4-tiazolium ring was proved by comparison of the cmr and uv spectra of the products
键入8异喹啉鎓两性离子通过型的反应,合成1酮类或键入2具有不同的5-氨基-3- Q-1吡喃鎓盐ħ -1,2,4-三唑。给出了所得产物的两性离子结构的光谱和X射线衍射证据。通过比较为此目的制备的三种可能的N-苄基衍生物14-16获得的产物的cmr和uv光谱,证明了1,2,4-噻唑环上的负电荷位置。