A novel divergent domino annulation reaction of prop-2-ynylsulfonium salts with sulfonyl-protected β-amino ketones has been developed, affording various epoxide-fused 2-methylenepyrrolidines and S-containing pyrroles in moderate to excellent yields. Prop-2-ynylsulfonium salts act as C2 synthons in the reactions providing a promising epoxide-fused skeleton in a single operation with readily accessible
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Alkoxyphenyliminoiodanes: Highly Efficient Reagents for the Catalytic Aziridination of Alkenes and the Metal‐Free Amination of Organic Substrates
作者:Akira Yoshimura、Victor N. Nemykin、Viktor V. Zhdankin
DOI:10.1002/chem.201102265
日期:2011.9.12
Owing to the presence of the ortho‐substituent on the phenyl ring, these new iminoiodanes have excellent solubility in organic solvents and are efficient reagents for the catalytic aziridination of alkenes or the metal‐free tosylamination of organic substrates (see scheme, Ts=tosyl).
the first time by X‐ray structural analysis. The ortho‐methoxymethyl group and the carbonyl oxygen coordinate to the iodine atom of the iminoiodinane. Activation of the N‐acyliminoiodinane was achieved by photoirradiation at 370 nm, thereby enabling reaction with various silylenol ethers to give α‐aminoketone derivatives in good to high yield. N‐sulfonyliminoiodinanes bearing ortho substituents were
A mild and efficient synthesis of α-tosylamino ketones from aryl aziridines in the presence of β-cyclodextrin and NBS in water
作者:M. Somi Reddy、M. Narender、K. Rama Rao
DOI:10.1016/j.tetlet.2004.12.125
日期:2005.2
NBS has been utilized for the first time for the oxidative cleavage of aryl aziridines involving β-cyclodextrin–aziridine complexes in water to give the corresponding α-amino ketones in high yields.
Synthesis of 2-oxo-acetamidines via copper-catalyzed oxidative cross-coupling of α-amino ketone compounds with amines
作者:Pengjie Wang、Yi Xiong、Yiqun Qin、Jiajia Zhang、Niannian Yi、Jiannan Xiang、Wei Deng
DOI:10.1016/j.catcom.2019.105766
日期:2019.11
and efficient method for the synthesis of 2-oxo-acetamidines via copper-catalyzed oxidative cross-coupling of amines with α-amino ketone compounds was achieved. In this reaction, the C − N bond of α-amino ketone is broken and new C − N and CN bonds are constructed in one single transformation. This reaction system has a broad substrate scope and provides a facile pathway for the synthesis of 2-oxo-acetamidines