[EN] CYCLIC INDOLE-3-CARBOXAMIDES, THEIR PREPARATION AND THEIR USE AS PHARMACEUTICALS [FR] INDOLE-3-CARBOXAMIDES CYCLIQUES, LEUR PRÉPARATION ET LEUR UTILISATION COMME PRODUITS PHARMACEUTIQUES
Palladium-Assisted Regioselective C–H Cyanation of Heteroarenes Using Isonitrile as Cyanide Source
作者:Shuguang Xu、Xiaomei Huang、Xiaohu Hong、Bin Xu
DOI:10.1021/ol302070t
日期:2012.9.7
A palladium-catalyzedregioselectiveC–Hcyanation of heteroarenes was achieved using tert-butyl isocyanide as “CN” source, which provides a new and unique strategy for the preparation of (hetero)aryl nitriles. Indoles, pyrroles, and aromatic rings could be efficiently cyanated through C–Hbondactivation with high regioselectivity.
Palladium-Catalyzed C(sp<sup>2</sup>)–N Bond Cross-Coupling with Triaryl Phosphates
作者:Zicong Chen、Xiangmeng Chen、Chau Ming So
DOI:10.1021/acs.joc.9b00703
日期:2019.5.17
The first general palladium-catalyzed amination of aryl phosphates is described. The combination of MorDalPhos with [Pd(π-cinnamyl)Cl]2 enables the amination of electron-rich, electron-neutral, and electron-poor aryl phosphates with a board range of aromatic, aliphatic, and heterocyclic amines. Common functional groups such as ether, keto, ester, and nitrile show an excellent compatibility in this
Ru
<sup>V</sup>
‐Acylimido Intermediate in [Ru
<sup>IV</sup>
(Por)Cl
<sub>2</sub>
]‐Catalyzed C–N Bond Formation: Spectroscopic Characterization, Reactivity, and Catalytic Reactions
作者:Dan‐Yan Hong、Yungen Liu、Liangliang Wu、Vanessa Kar‐Yan Lo、Patrick H. Toy、Siu‐Man Law、Jie‐Sheng Huang、Chi‐Ming Che
DOI:10.1002/anie.202100668
日期:2021.8.16
bond formationreactions via acylnitrene transfer have recently attracted much attention, but direct detection of the proposed acylnitrenoid/acylimido M(NCOR) (R=aryl or alkyl) species in these reactions poses a formidable challenge. Herein, we report on Ru(NCOR) intermediates in C−N bond formation catalyzed by [RuIV(Por)Cl2]/N3COR, a catalytic method applicable to aziridine/oxazoline formation from
Nickel catalyzed decyanation of aryl and aliphatic cyanides with hydrosilane as the hydride source has been developed. This method is easy to handle, scalable and can be carried out without a glove box. The method has been applied in the cyanide directed functionalization reaction and α-substitution of benzyl cyanide.
Direct Trifluoromethylthiolation and Perfluoroalkylthiolation of C(sp
<sup>2</sup>
)H Bonds with CF
<sub>3</sub>
SO
<sub>2</sub>
Na and R
<sub>f</sub>
SO
<sub>2</sub>
Na
A new method for CF3SO2Na‐based direct trifluoromethylthiolation of C(sp2)H bonds has been developed. CF3SSCF3 is generated in situ from cheap and easy‐to‐handle CF3SO2Na, and in the presence of CuCl can be used for electrophilic trifluoromethylthiolation of indoles, pyrroles, and enamines. The method has been extended to perfluoroalkylthiolation reactions using RfSO2Na.
已开发出一种基于CF 3 SO 2 Na的C(sp 2)H键直接三氟甲基硫醇化的新方法。CF 3 SSCF 3是由便宜且易于处理的CF 3 SO 2 Na原位生成的,在存在CuCl的情况下,可用于吲哚,吡咯和烯胺的亲电三氟甲基硫醇化反应。该方法已扩展到使用R f SO 2 Na的全氟烷基硫醇化反应。