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2-氨基-4,5-二芳基噻唑的合成

Synthesis of 2-Amino-4,5-diphenylthiazoles
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摘要 以芳香醛为原料,经安息香缩合反应合成了5个2-羟基-1,2-二芳基乙酮类物质,并对该反应条件进行了优化,得到了最佳合成条件为:20 mol%催化剂,10 mol%NaOH,V(H2O)∶V(C2H5OH)=1∶3。2-羟基-1,2-二芳基乙酮类物质经氯代、环合最终合成2-氨基噻唑衍生物。产物结构经IR、1HNMR和HRMS进行表征。 Five 2-hydroxy-1,2-diarylenthanones were synthesized by benzoin condensation with aromatic aldehydes as raw material and the reaction conditions were investigated. The optimized conditions are :n(catalyst) = 20 mol% ,n(NaOH) = 10 mol% ,and V(H2O) : V(C2H5OH) = 1 : 3 as reagent. The 2- amino-4,5-diarylthiazoles were synthesized from 2-hydroxy- 1 ,2-diarylenthanones by a two-step reaction of chlorination and cyclization. The structures of were confirmed by IR, ^1HNMR and HRMS.
出处 《化学试剂》 CAS CSCD 北大核心 2014年第8期751-754,共4页 Chemical Reagents
基金 江苏省高校自然科学研究重大资助项目(10KJA170003) 江苏省高校科研成果产业化推进资助项目(JHB2012-60) 连云港市科技攻关资助项目(CG1105) 江苏高校优势学科建设工程资助项目
关键词 2-氨基-4 5-二芳基噻唑 安息香缩合 芳香醛 2-amino-4,5-diphenylthiazoles benzoin condensation aromatic aldehyde
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