Carbon Dioxide-Mediated C(sp<sup>3</sup>)–H Arylation of Amine Substrates
作者:Mohit Kapoor、Daniel Liu、Michael C. Young
DOI:10.1021/jacs.8b05061
日期:2018.6.6
Elaborating amines via C-H functionalization has been an important area of research over the past decade but has generally relied on an added directing group or sterically hindered amine approach. Since free-amine-directed C(sp3)-H activation is still primarily limited to cyclization reactions and to improve the sustainability and reaction scope of amine-based C-H activation, we present a strategy
Palladium-Catalyzed C(sp<sup>3</sup>
)−H Arylation of Primary Amines Using a Catalytic Alkyl Acetal to Form a Transient Directing Group
作者:Sahra St John-Campbell、Alex K. Ou、James A. Bull
DOI:10.1002/chem.201804515
日期:2018.12.3
requires derivatization at nitrogen with a directinggroup. Transientdirectinggroups (TDGs) permit C−H functionalization in a single operation, without needing these additional steps for directinggroup installation and removal. Here we report a palladium catalyzed γ‐C−H arylation of amines using catalytic amounts of alkyl acetals as transientactivators (e.g. commercially available (2,2‐dimethoxyethoxy)benzene)
Native amine-directed site-selective C(sp3)-H arylation of primary aliphatic amines with aryl iodides
作者:Pranab K. Pramanick、Zhibing Zhou、Zhenlin Hou、Yufei Ao、Bo Yao
DOI:10.1016/j.cclet.2019.10.034
日期:2020.5
N-unprotected aliphaticamines represents one of the most efficient and straightforward strategies for amine synthesis. Despite some recent progress in this field, the NH2-directed γ-C(sp3)-H arylation of primaryaliphaticamines except α-amino esters remained an unmet challenge. In this report, we established a simple and efficient method for site-selective C(sp3)-H arylation of primaryaliphaticamines by aryl
Carbon Dioxide as a Directing Group for C-H Functionalization Reactions Involving Lewis Basic Amines, Alcohols, Thiols, and Phosphines for the Synthesis of Compounds
申请人:The University of Toledo
公开号:US20190185392A1
公开(公告)日:2019-06-20
Methods of synthesizing compounds using CO
2
as a directing group for C—H functionalization, and compounds made thereby, are described.
描述了利用CO2作为导向基进行C-H官能化合成化合物的方法,以及由此制备的化合物。
Carbon dioxide as a directing group for C—H functionalization reactions involving Lewis basic amines, alcohols, thiols, and phosphines for the synthesis of compounds
申请人:The University of Toledo
公开号:US10865163B2
公开(公告)日:2020-12-15
Methods of synthesizing compounds using CO2 as a directing group for C—H functionalization, and compounds made thereby, are described.