A soluble iron(<scp>ii</scp>)-phthalocyanine-catalyzed intramolecular C(sp<sup>3</sup>)–H amination with alkyl azides
作者:Tingjie You、Si-Hao Zeng、Jianqiang Fan、Liangliang Wu、Fangyuan Kang、Yungen Liu、Chi-Ming Che
DOI:10.1039/d1cc04573c
日期:——
Herein, we describe a soluble iron(II)-phthalocyanine, [FeII(tBu4Pc)(py)2] (Pc = phthalocyaninato(2–)), as an effective catalyst in intramolecularC(sp3)–H bond amination, with alkyl azides as the nitrogen source, to afford the amination products in moderate to excellent yields with a broad substrate scope.
在此,我们描述了一种可溶性铁 ( II )-酞菁 [Fe II ( t Bu 4 Pc)(py) 2 ] (Pc = phthalocyaninato(2-)),作为分子内 C(sp 3 )-H的有效催化剂键胺化,以烷基叠氮化物为氮源,以中等至优异的产率提供胺化产物,底物范围广泛。
Formal synthesis of (+)-SCH 351448: the Prins cyclization approach
作者:Kok-Ping Chan、Yvonne Hui Ling、Teck-Peng Loh
DOI:10.1039/b616558c
日期:——
The formal synthesis of (+)-SCH 351448 has been accomplished with the catalytic Prins cyclization strategy, yielding the monomeric unit as a single isomer.
Nickel-Catalyzed Ligand-Controlled Regioselective Allylic Alkenylation of Allylic Alcohols with Easily Accessible Alkenyl Boronates: Synthesis of 1,4-Dienes
作者:Xuye Wu、Mei Yang、Yuanhong Liu
DOI:10.1021/acs.orglett.3c03219
日期:2023.12.15
nickel-catalyzed direct reaction of allylicalcohols with easily accessible alkenyl boronates has been developed, which provides valuable 1,4-dienes with high regio- and stereoselectivity in good to excellent yields, wide substrate scope, and functional group compatibility. The catalytic system simply consists of Ni(cod)2 as the catalyst and a ligand, without a need for a base and alcoholactivator in most
A copper-catalyzedarylation or alkenylation of quinoline N-oxides with aryl- or alkenylboronates, respectively, has been developed, which provides an efficient route for C2-substituted oxygenated quinolines under mild reaction conditions. The reaction shows a broad substrate scope for both quinoline N-oxides and aryl/alkenylboronates, mild reaction conditions, and high reaction efficiency. The formation
作者:Santana, Catherine G.、Teoh, Yhin Sarah、Evarts, Madeline M.、Shezaf, Jonathan Z.、Krische, Michael J.
DOI:10.1021/acs.orglett.4c02642
日期:——
Formate-mediated reductive cross-couplings of vinylhalides with aryl iodides via palladium(I) catalysis occur with highly uncommon cine-substitution. The active dianionic palladium(I) catalyst, [Pd2I4][NBu4]2, is generated in situ from Pd(OAc)2, Bu4NI, and formate. Oxidative addition of aryl iodide followed by dissociation of the dimer provides the monomeric anionic T-shaped arylpalladium(II) species
甲酸盐介导的乙烯基卤化物与芳基碘化物通过钯 (I) 催化的还原叉偶联以非常罕见的 cine 取代发生。活性二离子钯 (I) 催化剂 [Pd2I4][NBu4]2 由 Pd(OAc)2、Bu4NI 和甲酸盐原位生成。芳基碘化物的氧化加成,然后二聚体解离,产生了单体阴离子 T 形芳钞 (II) 物种 [Pd(Ar)(I)2(NBu4)],它在乙烯基卤化物碳钯化后通过钯 (IV) 卡宾形成电影取代产物,氘标记实验证实了这一点。