68-34-8Relevant articles and documents
Intermolecular iodofunctionalization of allenamides with indoles, pyrroles, and furans: Synthesis of iodine-substituted: Z -enamides
Li, Honghe,Li, Xiaoxiao,Zhao, Zhigang,Ma, Ting,Sun, Chenyang,Yang, Bowen
, p. 10167 - 10170 (2016)
A new method was developed to synthesize iodine-substituted Z-enamides through N-iodosuccinimide-mediated intermolecular iodofunctionalization of allenamides with indoles, pyrroles, and furans. These reactions proceed rapidly and tolerate a broad scope of substrates. The conjugated sulfimide ion species probably acts as the key intermediate.
Pressure-induced Synthesis of an N-Sulphonyl-1H-azepine by Sulphonyl-nitrene Insertion into Benzene
Ayyangar, Nagaraj R.,Bambal, Ramesh B.,Lugade, Ananda G.
, p. 790 - 791 (1981)
The thermal decomposition of toluene-p-sulphonyl azide (1) in an excess of benzene under a nitrogen atmosphere gave p-tosyl-1H-azepine (2), the yield of which increased with an increase in N2 pressure.
Ligand-Controlled Regiodivergence for Catalytic Stereoselective Semireduction of Allenamides
Hajiloo Shayegan, Mojtaba,Li, Zhong-Yuan,Cui, Xin
supporting information, (2021/12/02)
Ligand-controlled regiodivergence has been developed for catalytic semireduction of allenamides with excellent chemo- and stereocontrol. This system also provides an example of catalytic regiodivergent semireduction of allenes for the first time. The divergence of the semireduction is enabled by ligand switch with the same palladium pre-catalyst under operationally simple and mild conditions. Monodentate ligand XPhos exclusively promotes selective 1,2-semireduction to afford allylic amides, while bidentate ligand BINAP completely switched the regioselectivity to 2,3-semireduction, producing (E)-enamide derivatives.
Immobilization of copper(II) into polyacrylonitrile fiber toward efficient and recyclable catalyst in Chan-Lam coupling reactions
Zhang, Chenlu,Zhu, Hai,Gang, Kaiyue,Tao, Minli,Ma, Ning,Zhang, Wenqin
, (2021/02/09)
A series of polyacrylonitrile fiber (PANF)-supported copper(II) catalysts were prepared through the immobilization of Cu(II) into prolinamide-modified PANF (PANPA-2F) and subsequently used for the synthesis of diverse N-arylimidazoles from arylboronic acids and imidazole. The prepared Cu(II)@PANPA-2Fs were well characterized by mechanical strength, FT-IR, XRD, XPS and SEM. Among them, CuCl2@PANPA-2F exhibited excellent catalytic performance, and its activity was significantly affected by the Cu loading. This catalytic system also displayed good activity in the synthesis of N-arylsulfonamides from arylboronic acids and tosyl azide. It was highly efficient in gram-scale reactions and could be reused five times. The advantages of low cost, easy preparation, good durability and facile recovery make the fiber catalyst attractive.