作者:Anwar Fathi、yassir Mohammed
DOI:10.21608/ejchem.2021.90637.4320
日期:2021.9.12
1. in this paper we report synthesis of new substituted benzene sulfonohydrazone by the reaction of aniline with furo [3,4-b] pyridine-5,7- dione to give 2-(phenylcarbamoyl) nicotinic acid (1) which can be convert to 6- phenyl -5H- pyrrolo[3,4-b] pyridine -5,7(6H)- dione (2) by its reaction with acetic anhydride in the presence of sodium acetate. This compound was treated with chlorosulfuric acid to give 4-(5,7- dioxo-5,7- dihydro-6H- pyrrolo [3,4-b] pyridine 6-yl) benzenesulfonyl chloride (3). The compound (3) was reacted with hydrazine hydrate to give hydrazone (4). Lastly, the resulted hydrazone (4) was handled with numbers of aromatic aldehydes and ketones to give substituted benzene sulfonohydrazones (5- 12).
1. 本文报告了苯胺与呋喃并[3,4-b] 吡啶-5,7-二酮反应合成新的取代苯磺酰腙的情况,苯胺与呋喃并[3,4-b] 吡啶-5,7-二酮反应生成 2-(苯基氨基甲酰基)烟酸 (1),烟酸 (1)在醋酸钠存在下与醋酸酐反应可转化为 6-苯基-5H-吡咯并[3,4-b] 吡啶-5,7(6H)-二酮 (2)。该化合物经氯磺酸处理后得到 4-(5,7-二氧代-5,7-二氢-6H-吡咯并[3,4-b] 吡啶 6-基)苯磺酰氯 (3)。化合物 (3) 与水合肼反应生成腙 (4)。最后,将生成的腙(4)与多种芳香醛和酮反应,得到取代的苯磺酰腙(5-12)。