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利用醋酸铜在醋酸中对汉斯酯1,4-二氢吡啶(1,4-DHPs)进行需氧芳构化,反应条件温和,操作简单,选择性好.所得产物经熔点、~1H NMR及MS验证.
The azeotropic aromatization of 1,4-dihydropyridine (1,4-DHPs) was carried out in acetic acid using copper acetate in mild conditions and the operation was simple and selectivity was good.The melting point, 1H NMR And MS verification.