128991-31-1Relevant academic research and scientific papers
Electrolytic Partial Fluorination of Organic Compounds. 19. A Novel Synthesis of Fluorothienopyridines Using Anodic Fluorination of Heterocyclic Sulfides as a Key Step
Erian, Ayman W.,Konno, Akinori,Fuchigami, Toshio
, p. 7654 - 7659 (2007/10/03)
Highly regioselective anodic monofluorination of 2-pyridyl and 4-pyrimidinyl sulfides bearing various electron-withdrawing groups were successfully carried out.The fluorinated sulfides were easily converted into 2-fluorothienopyridines in good yields.
Synthesis of pyrido-thieno-pyrimidines and -triazines with an anellated dihydroimidazo- or tetrahydropyrimido moiety by the reaction of C1- or N1-components with tricyclic pyrido-thieno compounds
Leistner,Krasselt,Dumke,Wagner
, p. 682 - 686 (2007/10/02)
In a previous paper described 3-amino-2-(4,5-dihydroimidazole-2-yl)- and 3-amino-2-(3,4,5,6-tetrahydropyrimidine-2-yl)-thieno[2,3-b]pyridines D reacted with trimethyl orthoformiate or diethyl oxalate, respectively, to give the tetracyclic pyrimidine deriv
Synthesis of imidazoline-2-yl- and of 3,4,5,6-tetrahydropyrimidine-2-yl-3-amino-thieno[2,3-b]pyridines
Leistner,Wagner,Krasselt,Dumke St.
, p. 11 - 14 (2007/10/02)
The imidazoline and the tetrahydropyrimidine derivatives of the thieno[2,3-b]pyridines were prepared by the reaction of diaminoalkanes and carbondisulfide with the aminothieno-[2,3-b]pyridines 3 or from cyanomethylthiopyridines 2, or from aminothieno[2,3-
SYNTHESIS AND REACTIONS OF SOME THIENOPYRIDINE DERIVATIVES
Hassan, Kh. M.,El-Dean, A. M. Kamal,Youssef, M. S. K.,Atta, F. M.,Abbady, M. S.
, p. 181 - 189 (2007/10/02)
Substituted thienopyridines (VIII-XII) were prepared by ring closure of the corresponding S-alkylated derivatives (II-VI).Thienopyridine-2-carbohydrazide XIII was interacted with some reagents afforded the expected pyridothienopyrimidines (XIV-XVI).Also, the carboazide XVII undergo Curtius rearrangement giving imidazolothienopyridine (XVIII).The carboxamide derivatives (X-XII) interacted with CS2 giving pyridothienopyrimidines (XX-XXII), while interaction with nitrous acid, pyridothienotriazines (XXIII-XXV) were produced.
