suzuki-miyaura reactions catalyzed by c2-symmetric pd-multi-dentate n-heterocyclic carbene complexessuzuki-miyaura反应催化由c2-symmetric pd-multi-dentate氮杂卡宾配合物.pdfVIP

下载本文档

5
0
约7.58万字
约 19页
2017-09-12 发布于上海
举报
版权申诉

suzuki-miyaura reactions catalyzed by c2-symmetric pd-multi-dentate n-heterocyclic carbene complexessuzuki-miyaura反应催化由c2-symmetric pd-multi-dentate氮杂卡宾配合物.pdf

1、有哪些信誉好的足球投注网站（book118）网站文档一经付费（服务费），不意味着购买了该文档的版权，仅供个人/单位学习、研究之用，不得用于商业用途，未经授权，严禁复制、发行、汇编、翻译或者网络传播等，侵权必究。。
2、本站所有内容均由合作方或网友上传，本站不对文档的完整性、权威性及其观点立场正确性做任何保证或承诺！文档内容仅供研究参考，付费前请自行鉴别。如您付费，意味着您自己接受本站规则且自行承担风险，本站不退款、不进行额外附加服务；查看《如何避免下载的几个坑》。如果您已付费下载过本站文档，您可以点击这里二次下载。
3、如文档侵犯商业秘密、侵犯著作权、侵犯人身权等，请点击“版权申诉”（推荐），也可以打举报电话：400-050-0827(电话支持时间：9:00-18:30)。
4、该文档为VIP文档，如果想要下载，成为VIP会员后，下载免费。
5、成为VIP后，下载本文档将扣除1次下载权益。下载后，不支持退款、换文档。如有疑问请联系我们。
6、成为VIP后，您将拥有八大权益，权益包括：VIP文档下载权益、阅读免打扰、文档格式转换、高级专利检索、专属身份标志、高级客服、多端互通、版权登记。
7、VIP文档为合作方或网友上传，每下载1次，网站将根据用户上传文档的质量评分、类型等，对文档贡献者给予高额补贴、流量扶持。如果你也想贡献VIP文档。上传文档

suzuki-miyaura reactions catalyzed by c2-symmetric pd-multi-dentate n-heterocyclic carbene complexessuzuki-miyaura反应催化由c2-symmetric pd-multi-dentate氮杂卡宾配合物

Molecules 2012, 17, 12121-12139; doi:10.3390/molecules171012121 OPEN ACCESS molecules ISSN 1420-3049 /journal/molecules Article Suzuki-Miyaura Reactions Catalyzed by C -Symmetric 2 Pd-Multi-Dentate N-Heterocyclic Carbene Complexes Lan Jiang 1,2, Fengjun Shan 2, Zhengning Li 2,* and Defeng Zhao 1,* 1 State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116024, China; E-Mail: jianglan@ 2 College of Environmental and Chemical Engineering, Dalian University, Dalian 116622, China; E-Mail: sfj225@126.com * Authors to whom correspondence should be addressed; E-Mails: znli@ (Z.L.); zhaodfg@ (D.Z.); Tel.: +86-411-8740-3576 (Z.L.); Fax: +86-411-8740-2449 (Z.L.). Received: 20 September 2012; in revised form: 6 October 2012 / Accepted: 9 October 2012 / Published: 16 October 2012 Abstract: Suzuki-Miyaura coupling reactions are promoted by Pd complexes ligated with C -symmetric multi-dentate N-heterocyclic carbenes derived in situ from Pd(OAc) 2 2 and imidazolium salts. Good to excellent yields were obtained for aryl bromides as substrates. Turnover numbers of up to 105 could be achieved with 5 × 10−4 mol% of Pd(OAc) /1 × 10−3 mol% NHC precatalyst in 24 h. 2 Keywords: imidazolium salt; N-heterocyclic carbene; palladium; Suzuki-Miyaura coup