Bimanes. 14. Synthesis and properties of 4,6-bis(carbalkoxy)-1,5-diazabicyclo[3.3.0]octa-3,6-diene-2,8-diones [4,6-bis(carbalkoxy)-9,10-dioxa-syn-bimanes]. Preparation of the parent syn-bimane, syn-(hydrogen,hydrogen)bimane
Bimanes. 14. Synthesis and properties of 4,6-bis(carbalkoxy)-1,5-diazabicyclo[3.3.0]octa-3,6-diene-2,8-diones [4,6-bis(carbalkoxy)-9,10-dioxa-syn-bimanes]. Preparation of the parent syn-bimane, syn-(hydrogen,hydrogen)bimane
Highly water soluble dyes based on pyrazolone derivatives of carbohydrates
作者:Jalal Isaad
DOI:10.1016/j.tet.2013.01.038
日期:2013.3
The synthesis of water soluble pyrazolone derivatives dyes was achieved. The pyrazolidin-3,5-dione 5a,b and pyrazolin-5-one 3a,b and 4a,b units were selected as the key building block to prepare the glycoconjugated H-chromophore 6a–d, 7a,b, azo 8a–d, 9a,b and bisazo 10a–d, 11a,b dyespyrazolone derivatives based. The water solubility values show that these derivatives require a minimum percentage weight