Synthesis

New efficient synthesis of 2-substituted benzothieno [3, 2-d] pyrimidin-4 (3H)-ones via a tandem aza-Wittig reaction

SZ Xu, YG Hu, MW Ding

Index: Synthesis, , # 24 p. 4180 - 4186

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Citation Number: 6

Abstract

... Due to the easily accessible and versatile starting material, this method can potentially be used for the synthesis of many ... 3,2-d]pyrimidine-2-carboxylate (2) [22] (1.77 g, 8 mmol), Ph 3 P (3.14 g ... g, 12 mmol) in anhyd MeCN (40 mL), was added dropwise Et 3 N (2.42 g, 24 mmol) at ...