- Polysulfonylamines, LXXVI [1]: Occurrence of two supramolecular isomers in one crystal: Synthesis and structure of the monomeric 18-crown-6 complex (CH2CH2O)6·2 MeN(SO2Me)(SO2Ph)
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The title complex, obtained by co-crystallization of its molecular components from methanol, was characterized by low-temperature X-ray diffraction. The crystal structure (triclinic, space group P1, Z = 2) consists of two monomeric and crystallographicall
- Henschel, Dagmar,Hiemisch, Oliver,Blaschette, Armand,Jones, Peter G.
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- Lewis acid-assisted N-fluorobenzenesulfonimide-based electrophilic fluorine catalysis in Beckmann rearrangement
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A microwave-assisted N-fluorobenzenesulfonimide (NFSI)/Lewis acid-catalyzed Beckmann rearrangement was developed. The remarkable promotion to the electrophilicity of NFSI by Lewis acids was illustrated utilizing a series of readily available oxime substrates. The action model between NFSI and Lewis acids was probed by control experiments and theoretical calculations.
- Xie, Fukai,Du, Chuan,Pang, Yadong,Lian, Xu,Xue, Chentao,Chen, Yanyu,Wang, Xuefei,Cheng, Maosheng,Guo, Chun,Lin, Bin,Liu, Yongxiang
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supporting information
p. 5820 - 5824
(2016/12/06)
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- Nickel-Catalyzed Desulfitative Suzuki-Miyaura Cross-Coupling of N,N-Disulfonylmethylamines and Arylboronic Acids
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A nickel-catalyzed approach for the synthesis of biaryl compounds from N,N-disulfonylmethylamines and arylboronic acids has been developed. Instead of arenesulfonyl chlorides, various N,N-disulfonylmethylamines were used as the aryl source through extrusion of SO2 to give cross-coupling products in moderate to good yields. A NiCl2(dppp)-catalyzed [dppp = 1,3-bis(diphenylphosphino)propane] desulfitative Suzuki-Miyaura cross-coupling reaction between N,N-disulfonylmethylamines and arylboronic acids is described for the first time. The biaryl compounds are obtained in moderate to good yields.
- Chen, Liangshun,Lang, Hongyue,Fang, Lei,Yu, Jianjun,Wang, Limin
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supporting information
p. 6385 - 6389
(2016/02/18)
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- Electrophilic fluorination of N,N-dimethylaniline, N,N-dimethylnaphthalen- 1-amine and 1,8-bis(dimethylamino)naphthalene with N-F reagents
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Reaction of N,N-dimethylaniline, N,N-dimethylnaphthalen-1-amine and 1,8-bis(dimethylamino)- naphthalene (proton sponge) with 1-chloromethyl-4- fluorodiazonia-bicyclo[2.2.2]octane bis(tetrafluoroborate) (Selectfluor) and N-fluorobenzenesulfonimide (NFSI) h
- Sorokin, Vladimir I.,Pozharskii, Alexander F.,Ozeryanskii, Valery A.
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- Studies on alkyl-nitrogen bond formation via reductive elimination from monomeric palladium complexes in high oxidation state
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Oxidation of a series of defined palladium(II) complexes bearing a bidentate ligand, and a methyl and an amidato substituent was carried out with the aim to gain a better understanding of the inherent requirements for C-N bond-formation from Pd complexes in high oxidation state. This work clarified the role of the individual nitrogen sources and has important implication for alkyl-nitrogen bond-forming reactions catalyzed by Pd. Copyright
- Iglesias, álvaro,Mu?iz, Kilian
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p. 2007 - 2025
(2013/01/15)
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- Steric crowding makes challenging Csp3 - F reductive eliminations feasible
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A high-yielding fluorination of (triphos)Pt-R+ has been achieved using an array of F+ sources, with XeF2 yielding R-F in minutes. The C-F coupling proved to be a stereoretentive process that proceeds via a concerted reductive elimination from a putative dicationic Pt(IV) center. The larger the steric congestion of the (triphos)Pt-Csp3+ complexes, the more efficient the fluorination, seemingly a result of sterically accelerated C-F reductive elimination along with simultaneous deceleration of its competing processes (β-H elimination).
- Zhao, Shu-Bin,Becker, Jennifer J.,Gagne, Michel R.
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scheme or table
p. 3926 - 3929
(2011/10/03)
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