Synthesis of New Polyfused Thienopyrimidine, Thienopyridine, Thienothiazine, Thienoxazine, and Thienodiazepine Derivatives
作者:O. A. Abd Allah
DOI:10.1080/10426500307860
日期:2003.5.1
3,4-Diamino-2-carbethoxy-5-cyanothieno(2,3-b)thiophene (1) was treated with ethylenediamine to afford 3,4-diamino-2,5-bi[2-(4,5-dihydro-1H-imidazole-2-yl]-thieno(2,3-b)thiophene 2 , which in turn was treated with chloroacety chloride to give bis[imidazolothieno diazepine] derivative 3 and with each of p-chlorobenzaldehyde, triethyl orthoformate, and Lawesson's reagent (LR) to yield bis[imidazolothienopyrimidine]
使化合物1与CS 2 、苯基(苯甲酰基)异硫氰酸酯和苯基异氰酸酯反应,分别得到所述产物14-19。化合物1与乙基氰基乙酸乙酯反应,通过中间体20得到噻吩并(2,3-b)吡啶衍生物21。最后,化合物1用丙二腈处理,得到化合物22。