66236-13-3Relevant academic research and scientific papers
Synthesis of Benzofuran and Indole Derivatives Catalyzed by Palladium on Carbon
Savvidou, Anatoli,IoannisTzaras, Dimitrios,Koutoulogenis, Giorgos S.,Theodorou, Alexis,Kokotos, Christoforos G.
, p. 3890 - 3897 (2019/06/27)
Benzofurans and indoles are key moieties in many natural products and pharmaceuticals. Herein, we describe a cheap and easy-to-execute strategy for the synthesis of benzofurans and indoles, employing Pd/C as the promoter. A variety of substituted allyl-anilines and allyl-phenols were converted into the desired products in good to excellent yields. Recycling of Pd/C was possible up to five cycles, keeping similar levels of reactivity.
Green Organocatalytic Synthesis of Indolines and Pyrrolidines from Alkenes
Theodorou, Alexis,Kokotos, Christoforos G.
, p. 1577 - 1581 (2017/05/05)
Employing a green and efficient 2,2,2-trifluoroacetophenone-catalyzed oxidation of alkenes, which utilizes H2O2 as the green oxidant, a novel and sustainable synthesis of indolines and pyrrolidines was developed. This constitutes a cheap, general and environmentally-friendly protocol for the synthesis of substituted nitrogen-containing heterocycles. A variety of substitution patterns, both aromatic and aliphatic moieties, are well tolerated leading to the desired nitrogen heterocycles in good to excellent yields. (Figure presented.).
Enantioselective Synthesis of 2-Bromomethyl Indolines via BINAP(S)-Catalyzed Bromoaminocyclization of Allyl Aniline
Yu, Sheng-Nan,Li, Yin-Long,Deng, Jun
supporting information, p. 2499 - 2508 (2017/07/22)
An enantioselective bromoamination of allyl aniline with N-bromosuccinimide (NBS) catalyzed by BINAP(S) (BINAP monosulfide) is described. This protocol could provide a range of chiral 2-bromomethyl indolines in good to excellent yields with up to 87% ee.
Copper-catalyzed radical cascade cyclization for the synthesis of phosphorated indolines
Zhang, Hong-Yu,Mao, Liu-Liang,Yang, Bin,Yang, Shang-Dong
, p. 4101 - 4104 (2015/03/30)
A novel and convenient approach to the synthesis of various phosphorated indolines via a copper-catalyzed radical cascade cyclization reaction has been developed. The reaction employs cheap copper as the catalyst and K2S2O8 as the oxidant under mild conditions. Various alkenes and P-radical precursors are compatible with this transformation. Preliminary mechanistic studies reveal that the addition of the P-radical may initiate the reaction, and then oxidative cyclization may be achieved to afford the desired product. This journal is
Cu(oac)2-promoted cascade carboamination/oxidative cyclization of c-acylimines with alkenes
Dang, Ling,Liang, Libo,Qian, Cheng,Fu, Meiqin,Ma, Tongmei,Xu, Dingguo,Jiang, Huanfeng,Zeng, Wei
, p. 769 - 776 (2014/04/03)
A Cu(OAc)2-promoted cascade carboamination/oxidative cyclization of alkenes with a-imino esters has been explored. This transformation provides a concise approach to rapid assembly of 2-oxo-3-iminopyrrole derivatives in moderate to good yields.
Copper-catalyzed enantioselective intramolecular alkene amination/intermolecular heck-type coupling cascade
Liwosz, Timothy W.,Chemler, Sherry R.
, p. 2020 - 2023 (2012/03/12)
Enantioselective copper-catalyzed cyclization of γ- alkenylsulfonamides and a δ-alkenylsulfonamide in the presence of a range of vinyl arenes results in variously functionalized 2-substituted chiral nitrogen heterocycles via a formal alkene C-H functionalization process. Application of this reaction to the concise synthesis of a 5-HT7 receptor antagonist is demonstrated.
Hg(OTf)2-BINAPHANE-catalyzed enantioselective anilino sulfonamide allyl alcohol cyclization
Yamamoto, Hirofumi,Ho, Elisabeth,Namba, Kosuke,Imagawa, Hiroshi,Nishizawa, Mugio
supporting information; experimental part, p. 11271 - 11274 (2010/11/04)
Chiral ligands: Hg(OTf)2-catalyzed cyclization of anilino sulfonamide allyl alcohol is described; this reaction gives 2-vinyl indoline derivatives in good yields and excellent enantioselectivity by using a chiral BINAPHANE ligand (see scheme).
Binuclear iridium(I) phosphine complexes and their use as catalyst in the asymmetric hydroamination of olefins
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, (2008/06/13)
Binuclear iridium (I) phosphine complexes of the general formula: STR1 in which X is fluorine, chlorine, bromine or iodine, and STR2 is in each case a chiral bidentate diphosphine ligand. The complexes are particularly suitable as catalysts for the inter-
