β-Nitroacrylates as key building blocks for the synthesis of alkyl 3-substituted 5-oxopiperazine-2-carboxylates under fully heterogeneous conditions
摘要:
Substituted piperazines are important heterocycles possessing wide and important biological activities. Herein we report a new easy synthetic approach for preparation of alkyl 3-substituted 5-oxopiperazine-2-carboxylates using beta-nitroacrylates as key starting materials.
β-Nitroacrylates as Key Starting Materials for the Uncatalysed One-Pot Synthesis of Polyfunctionalized Dihydroquinoxalinone Derivatives, via an anti-Michael Reaction
The reaction of o-phenylenediamine with β-nitroacrylates allows the in situ preparation of dihydroquinoxalinones, via an anti-Michael reaction, under uncatalysed reaction conditions.
Carbonate on polymer is a valuable solid supported reagent (SSR) to promote, under eco-friendly conditions, the preparation of 2H-1,4-benzoxazin-2-onederivatives starting from β-nitroacrylates and aminophenols via a domino process.
聚合物上的碳酸盐是一种宝贵的固体支持试剂(SSR),可在环保条件下促进通过多米诺工艺从β-硝基丙烯酸酯和氨基苯酚制备2 H -1,4-苯并恶嗪-2-酮衍生物。