33604-68-1Relevant academic research and scientific papers
Modular Synthesis of Alkylarylazo Compounds via Iron(III)-Catalyzed Olefin Hydroamination
Zhang, Yan,Huang, Chenchao,Lin, Xinru,Hu, Qi,Hu, Boyue,Zhou, Yulu,Zhu, Gangguo
, p. 2261 - 2264 (2019/03/26)
A novel Fe-catalyzed olefin hydroamination with aryldiazo sulfones for accessing alkylarylazo compounds has been successfully developed. Aryldiazo sulfones are used as radical acceptors, and N-N double bonds will be regenerated when an arene sulfonyl grou
Rhodium(II)-Catalyzed Synthesis of N-Aryl-N′-tosyldiazenes from Primary Aromatic Amines Using (Tosylimino)aryliodinane: A Potent Stable Surrogate for Diazonium Salts
Ito, Motoki,Tanaka, Arisa,Higuchi, Kazuhiro,Sugiyama, Shigeo
, p. 1272 - 1276 (2017/03/17)
A single-step synthesis of N-aryl-N′-tosyldiazenes from primary aromatic amines was developed. A wide range of aromatic amines provided the corresponding products in high yields by N–N bond formation with RhII–nitrene intermediates, which were generated in situ from dirhodium(II) complex catalysts and (tosylimino)-2,4,6-trimethylphenyliodinane, followed by oxidation. The synthesized N-aryl-N′-tosyldiazenes were successfully demonstrated to serve as potent and stable surrogates for diazonium salts in the two-step deaminative transformation of primary aromatic amines.
Copper-catalyzed synthesis of aryldiazo sulfones from arylhydrazines and sulfonyl chlorides under mild conditions
Liu, Jin-Biao,Chen, Fu-Jiao,Liu, En,Li, Jin-Hui,Qiu, Guanyinsheng
supporting information, p. 7773 - 7776 (2015/10/12)
In this paper, aryldiazo sulfones are prepared from tandem sulfonylation/dehydrogenation reactions of arylhydrazines and sulfonyl chlorides. The transformations proceed well in the presence of catalytic CuSO4·5H2O, leading to aryldiazo sulfones in good to excellent yields. It is believed that this protocol represents a safe and convenient model for the synthesis of these versatile aryldiazo sulfones under mild conditions.
Fast, efficient, and convenient method for the preparation of arylazo aryl sulfones using stable aryldiazonium silica sulfates under mild conditions
Zarei, Amin,Hajipour, Abdol R.,Khazdooz, Leila,Aghaei, Hamidreza
experimental part, p. 1201 - 1204 (2010/07/06)
An efficient, fast, and straightforward procedure for the synthesis of arylazo aryl sulfones is described by using aryl diazonium silica sulfates and sodium arenesulfinates. The reaction was carried out at room temperature under mild conditions. The use o
A general animation method based on the addition of polyfunctional arylmagnesium reagents to functionalized arylazo tosylates
Sapountzis, Ioannis,Knochel, Paul
, p. 897 - 900 (2007/10/03)
A one-pot reaction sequence consisting of a Grignard reaction, allylation, and reduction provides new functionalized diarylamines in good yields (see scheme, Ts = toluene-4-sulfonyl, NMP = N-methylpyrrolidine, TFA = trifluoroacetic acid). In the first ste
Reactions of arylazosulfones with the conjugate bases of (tert-butoxycarbonyl)methyl and tosylmethyl isocyanide. Synthesis of substituted 1-arylimidazoles
Dell'Erba, Carlo,Novi, Marino,Petrillo, Giovanni,Tavani, Cinzia
, p. 2125 - 2136 (2007/10/03)
The reactions of arylazosulfones 1 (ArN = NSO2Ar') with the potassium salts of (tert-butoxycarbonyl)methyl 2 and tosylmethyl isocyanide 3 in DMSO afford 4,5-bis(tert-butoxycarbonyl)- 4 and 4-tosyl-1-arylimidazoles 5, respectively. Yields of imidazoles 4 and 5 vary from moderate to excellent depending on the nature both of Ar in 1 and of the nucleophile (2 or 3) employed. A comparison of the results obtained with those relevant to the reactions of the same nucleophiles with nitrosobenzene in analogous experimental conditions provides useful mechanistic indications on the transformation of 1 to 4 or 5.
