36刘畅等N-烷基-2,7-二硼酸频哪醇酯咔唑的合成与表征N-烷基-2,7-二硼酸频哪醇酯咔唑的合成与表征*刘畅1,刘元丙2,金印2,李临光2,杨振强1(1河南省科学院化学研究所有限公司,河南郑州450002;2沁阳市创安化工科技有限公司,河南沁阳454550)摘要:以2,7-二溴-9H-咔唑为初始原料,经亲电取代反应、MiyauraBorylation反应合成了一类化合物N-烷基-2,7-二硼酸频哪醇酯咔唑。利用1HNMR对目标化合物的结构进行了表征;研究了反应溶剂、碱、催化剂和膦配体等因素对MiyauraBorylation反应的影响,确定了最佳反应条件:NMP为溶剂,乙酸钾为碱,Pd2(dba)3为催化剂,S-PHOS为配体。关键词:2,7-二溴-9H-咔唑;N-烷基-2,7-二硼酸频哪醇酯-9H-咔唑;合成与表征中图分类号:O62SynthesisandCharacterizationofN-alkyl-2,7-bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)CarbazoleLIUChang1,LIUYuan-bing2,JINYin2,LILin-guang2,YANGZhen-qiang1(1HenanAcademyofSciencesInstituteofChemistryCo.Ltd.,Zhengzhou450002,Henan,China;2QinyangChuanganChemicalTechnologyCo.,Ltd.,Qinyang454550,Henan,China)Abstract:AclassofcompoundsN-alkyl-2,7-bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)carbazolewassynthesizedbyelectrophonicsubstitutionreactionandMiyauraBorylationreactionwith2,7-dibromo-9H-carbazoleastherawmaterial.Thestructureofthesynthesizedcompoundwascharacterizedby1HNMR.Meanwhile,theinfluencesofsolvents,bases,catalystsandligandsontheMiyauraBorylationreactionwereinvestigated.Theoptimalreactionconditionsweredetermined:NMPwasthesolvent,potassiumacetatewasthebase,Pd2(dba)3wasthecatalyst,S-PHOSwastheligand.Keywords:2,7-dibromo-9H-carbazole;N-alkyl-2,7-bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)carbazole;synthesisandcharacterization*基金项目:河南省科学院重大聚焦项目(210103001);河南省科学院特聘研究员项目(200503001)。作者简介:刘畅,硕士,主要从事有机光电材料研究与开发。通讯作者:杨振强,研究员;Tel:(0371)65511003;E-mail:1953788780@qq.com。有机电致发光二极管(OrganicLight-EmittingDiode,简称OLED)是一种新型显示技术,由较薄的有机材料涂层和基体材料构成,具有自主发光、亮度高、高对比度、色彩纯真等优点[1],且耗电量较小,不需要背光源,响应速度快,使用...