✍ Scribed by Kerstin Bischoff; Ulrich Girreser; Dieter Heber; Martin Schuett
No coin nor oath required. For personal study only.
📜 SIMILAR VOLUMES
## Reactivity of Thioaldehyde: Cyclization Reaction of 6-Amino-1,3-dimethyl-5-thioformyluracil with Enamines into Pyrido(2,3d)pyrimidine-2,4-(1H,3H)-diones. -The thioaldehyde (I) reacts with electron-rich morpholino enamines under mild condition to afford pyridopyrimidines of type (III) in a regi
## Abstract Bridgehead nitrogen heterocycles **3a**, **b** and **6a**, **b** containing the thieno‐pyrimidine system have been prepared from the versatile intermediates 3‐amino‐2,3‐dihydro‐5,6‐dimethyl‐2‐thioxo‐thieno[2,3‐__d__]pyrimidin‐4‐(1__H__)‐one **1** and its hydrazinium or potassium salts *
## Abstract magnified image A series of 3‐[(6‐chloropyridin‐3‐yl)methyl]‐6‐substituted‐6,7‐dihydro‐3__H__‐1,2,3‐triazolo[4,5‐__d__]pyrimidin‐7‐imines were designed and synthesized __via__ a multi‐step sequence using 2‐chloro‐5‐(chloromethyl)‐pyridine as the starting material. Various primary aliph