ChemInform Abstract: Synthesis of Pyrrolidin-2-ones via Tandem Reactions of Vinyl Sulfonium Salts under Mild Conditions.

The development of active and selective non-noble metal-based catalysts for the chemoselective reduction of nitrocompounds able to work in aquo media under mild conditions is an attractive research area. Herein,...

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Catalytic One-Pot Synthesis of Cyclic Amidines by Virtue of Tandem Reactions Involving Intramolecular Hydroamination under Mild Conditions.

ChemInform ◽

10.1002/chin.200705140 ◽

2007 ◽

Vol 38 (5) ◽

Author(s):

Sukbok Chang ◽

Minjae Lee ◽

Doo Young Jung ◽

Eun Jeong Yoo ◽

Seung Hwan Cho ◽

...

Keyword(s):

Tandem Reactions ◽

One Pot ◽

Mild Conditions ◽

One Pot Synthesis

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ChemInform Abstract: Novel Syntheses of N-Aryloxazolidin-2-ones via Tandem Reactions of Vinyl Sulfonium Salts.

ChemInform ◽

10.1002/chin.201015121 ◽

2010 ◽

Vol 41 (15) ◽

Cited By ~ 1

Author(s):

Chungsong Xie ◽

Deyu Han ◽

Jinhua Liu ◽

Tian Xie

Keyword(s):

Tandem Reactions ◽

Sulfonium Salts

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[R2S-CH2-OTf]+ OTf– as a Reagent with an Optionally Mono-or Biselectrophilic Csp3 Center

Zeitschrift für Naturforschung B ◽

10.1515/znb-1998-0824 ◽

1998 ◽

Vol 53 (8) ◽

pp. 916-926 ◽

Cited By ~ 4

Author(s):

Robert Weiss ◽

Matthias Handke ◽

Frank Hampel

Keyword(s):

Pyridine Derivatives ◽

Nucleophilic Substitutions ◽

Sulfonium Salts ◽

X Ray ◽

Mild Conditions ◽

Onium Salts ◽

Novel Variant ◽

Selective Substitution ◽

Leaving Groups

Abstract Sulfonium salts [R2S-CH2-OTf]+ OTf- 1a,b are synthetically versatile 1,1-biselectrophiles featuring the sulfonio- and triflato-substituents as leaving groups of differential nucleofugic power. Reactions with a number of neutral nucleophiles |Nu yield a series of novel sulfoniom ethylated onium salts [R2S-CH2-Nu]2+ 2OTf- 2 - 8 under very mild conditions. Structures of salts 2a, 5a and 6b were confirm ed by X -ray analysis. With certain N -hetarenes exchange of both nucleofuges in la was achieved, yielding the symmetrical 1,1-bisonium salts 9 and 10. With pyridine(derivatives) selective substitution of the sulfoniofunction in 1,1-bisonium systems 2a and 5a was also realized. These reactions represent typical examples of nucleophilic substitutions at geminally bisonio substituted Csp3 centers, which we recently have introduced as a novel variant of Sɴ2 reactivity.

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Catalytic One-Pot Synthesis of Cyclic Amidines by Virtue of Tandem Reactions Involving Intramolecular Hydroamination under Mild Conditions

Journal of the American Chemical Society ◽

10.1021/ja064788i ◽

2006 ◽

Vol 128 (38) ◽

pp. 12366-12367 ◽

Cited By ~ 85

Author(s):

Sukbok Chang ◽

Minjae Lee ◽

Doo Young Jung ◽

Eun Jeong Yoo ◽

Seung Hwan Cho ◽

...

Keyword(s):

Tandem Reactions ◽

One Pot ◽

Mild Conditions ◽

One Pot Synthesis

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Copper(I) Iodide Catalyzed Tandem Reactions of N-Propargyl-N-(2-iodoaryl)amides with Sodium Azide: An Efficient Synthesis of [1,2,3]Triazolo[1,5-a]quinoxalines

Synlett ◽

10.1055/s-0037-1610766 ◽

2021 ◽

Vol 32 (08) ◽

pp. 805-809

Author(s):

Yinghong Zhu ◽

Wanli Chen ◽

Xiangtu Tu ◽

Mingxia Xu ◽

Youqun Chu

Keyword(s):

Efficient Method ◽

Sodium Azide ◽

Tandem Reactions ◽

Efficient Synthesis ◽

Mild Conditions ◽

Type Coupling ◽

Catalyzed Reactions

AbstractCopper-catalyzed reactions of N-propargyl-N-(2-iodoaryl)amides with sodium azide have been developed, providing a novel and efficient method for the synthesis of [1,2,3]triazolo[1,5-a]quinoxaline compounds under mild conditions in moderate yields by tandem copper-catalyzed azide-alkyne cycloaddition and Ullmann-type coupling.

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